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Gemstones are the core components of any Gem. They appear as literal gemstones in various cuts, shapes, and colors, located randomly on any Gem's physical form.

Description

The gemstones are, in essence, the Gem's core. According to Pearl in "What Are Gems?", their physical bodies are merely a hologram with mass from within the gemstone, much like their weapons and outfits. Garnet states in "Steven the Sword Fighter" that if the physical body (which is just an "illusion" made of light with mass) of a Gem is severely damaged or injured, it retreats to its gemstone to regenerate and project a new body form. All the Crystal Gems besides Steven have been shown to regenerate.

The Answer 020

Three Rubies.

In contrast, any slight damage to the gemstone, such as a crack, results in a serious and often crippling injury to the Gem. It can interfere with their powers, as Lapis Lazuli is unable to summon her water wings while her gemstone is cracked in "Ocean Gem". It also interferes with their ability to manifest/control their physical bodies as Amethyst lost more and more control of hers as her gemstone is continuously cracked in "An Indirect Kiss". It may also interfere with the physical form itself. In "Bubbled", "Eyeball"'s gemstone is cracked, resulting in her hand manifesting and unmanifesting several times. Shattering a Gemstone effectively kills the Gem (although it retains some properties, such as the Gem Shards in "Frybo" and "Secret Team", the Smoke Monster in "Together Breakfast" and all the gem shards they have encountered).

During Gem Fusion, all participants' gemstones shift colors to match each other. If the participants of the fusion are the same Gem type, the resulting fusion is just a larger version of the Gem.

Multiple Gems with the same gemstone may exist. Gemstone placement appears to vary from Gem to Gem, even if they are of the same gemstone. Most Gems of the same gemstone will have the same cut to their gemstone; however, some Gems (such as the Diamonds, Pearls, Jasper and one of the Zoo Amethysts) are exceptions to this. Gems of the same gemstone can have different summoned weapons.

Gemstones are generally locked in a specific location on the Gem's construct body, with even fusions maintaining the gemstones that compose them in the same anatomy. However, they can be oriented differently, as with Pink Diamond shifting her abdominally-located gemstone from a lateral to a dorso-ventral position as Rose Quartz, or Spinel flipping her gem upside down upon her second regeneration.

Abilities

Gems can manifest things from within their gemstone, with the most important being their personal weapons and their physical bodies. Pearl, Garnet, Peridot and Spinel have the ability to store and withdraw objects (such as a roll of tape, temple key, EMP device or a Gem Rejuvenator respectively) in their gemstone, but it is currently unknown if that ability is unique to them or if all Gems share it.

Gem bubbles have a stasis-like effect on gemstones; when "bubbled" by another Gem, the gemstone is prevented from regenerating/manifesting its physical body or weapon, essentially being imprisoned indefinitely until the bubble bursts.

Gemstones also find use in Gem technology. They are used as power sources for various objects such as Lapis' gemstone being used to power the magical mirror in "Mirror Gem". A corrupted gemstone also powered the mechanical apparatus in the Pyramid Temple in "Serious Steven".

Culture

As one would expect, the gemstone of each Gem is a core aspect of Gem culture. The Gems are not only named after their gemstone but are also recognized by other Gems by it. In "The Return", Jasper showed that she had known of Rose Quartz before the events of the episode and, due to Steven having inherited his mother's gemstone, she instantly thinks he is his mother shape-shifted into a weak, human boy which confuses and infuriates her. Individuality is a rare concept among Gems, as there is evidently little to differentiate Gems (aside from gemstone type) other than a serial number based on facet and cut.

It also seems to be customary for a Gem to keep their gemstones exposed, as all full uncorrupted Gems seen in the series have had theirs at least partially visible, to the point of altering the Homeworld uniform.

Unfused Gemstones

Image Location Debut
NewRoseGem1
Rose Quartz's gemstone, as well as Steven's, is located on their navels. It has a pentagonal facet.

As revealed in "A Single Pale Rose", it is actually a repositioned version of Pink Diamond's gemstone.

"Gem Glow"
Pearl Gemstone New
Pearl's gemstone is located in the center of her forehead. The gemstone is smooth with no facets. As seen when she is regenerating in "Steven the Sword Fighter", it has a silver ring around the edge which is usually hidden inside Pearl's forehead.
AmethystGem2
Amethyst's gemstone is located on her chest. It has a hexagonal facet. As seen in "Reformed", it has a silver ring around the edge which is normally hidden inside Amethyst's body unless she is regenerating.
NewRubyGem2
Ruby's gemstone is located on the palm of her left hand. It has a square facet. As seen in "The Return" and the flashback in "Jail Break", it has a light red ring around the edge (normally hidden inside her hand) and is flatter on the back. "The Return"
NewSapphireGem2
Sapphire's gemstone is located on the palm of her right hand. It has a triangular facet. As seen in "The Return" and the flashback in "Jail Break", it has a light blue ring around the edge (normally hidden inside her hand) and is flatter on the back.
BackGem
Lapis Lazuli's gemstone is located in between her shoulder blades. Her teardrop-shaped gemstone is smooth with no facets. "Mirror Gem"
PeridotLenhigem
Peridot's gemstone is located in the center of her forehead. Her gemstone is a triangle with facets around the edge. "Warp Tour"
Jasper Gem Model Sheet 3
Jasper's gemstone is located where her nose would be, in the center of her face. Her gemstone is cut with a point that is the conversion of the other three facets.

The appearance of Jasper's gemstone remains the same even after her corruption in "Earthlings" and her shattering in "Fragments".

"The Return"
Bdgem1
Blue Diamond's gemstone is located on her chest. It has a vertically-inverted diamond kite-shaped facet. "The Answer"
Yellow Diamond Gemstone
Yellow Diamond's gemstone is located on her chest. It has a diamond-shaped facet. "Message Received"
PDGemByJirachi23ColorsByYellow
Pink Diamond's gemstone is located on her navel. It is in the shape of an upside-down, five-sided diamond with multiple facets on the bottom. "Jungle Moon"
WDDayGemByYellow
White Diamond's gemstone is located in the center of her forehead. It is in the shape of a right-side up, five-sided diamond.[1][2] "Legs From Here to Homeworld"
Blue Pearl Gemstone fix
Blue Pearl's light-blue gemstone is round and unfaceted. It is located on her chest. "The Answer"
YellowDiamondPearl
Yellow Pearl's light-yellow gemstone is round and unfaceted. It is located on her chest. "Message Received"
White Pearl Gemstone by RylerGamerDBS
As White Pearl, Pink Pearl's gemstone was grayish-white instead of pink. "Legs From Here to Homeworld"
Pink Pearl Gemstone by RylerGamerDBS
Pink Pearl's light-pink gemstone is oval and unfaceted. It is located on her navel. "Together Alone"
AuberginePearlGemstone
Aubergine Pearl's dark-purple gemstone is oval and unfaceted. It is located on her forehead. "Homeworld Bound"
Bismuth - Gem
Bismuth's gemstone is located on her chest. The gemstone itself is hollow, and each "layer" of the gemstone is a different color. "Lion 3: Straight to Video"
HBA Gemstone by Perimarine
Holly Blue Agate's gemstone is located on the back of her head. It has an inverted kite-shaped facet, and is shaped like a teardrop. "Gem Heist"
CarnelianGemRotated
The defective Carnelian's gemstone is located on her left shoulder. It is red with a hexagonal facet. It also has a ring around the edges. "That Will Be All"
AquamarineGemstone
Aquamarine's gemstone is located underneath her left eye. It is light-blue and teardrop-shaped. "Are You My Dad?"
Topazgem
The two unfused Topazes' gemstones are located (respectively) on the left and right sides of their head. It is circular and yellow and has large centered circular facet and small triangular facets in between. Their gemstones resemble that of the Lighthouse Gem Monster, with the only difference being color.
ZirconGemByJirachi23
The defending Zircon's blue gemstone has a rectangular shape and a four-faceted facet. Her gemstone is located on her upper chest; it has a rectangular shape and a four-faceted facet. "The Trial"
Tumblr oqwwlkpsLO1urwc18o8 400-1
The prosecuting Zircon's yellow gemstone has a rectangular shape and a four-faceted facet. Her gemstone is located on her upper chest; it has a rectangular shape and a four-faceted facet.
Pad Gem
Padparadscha's peach-colored gemstone is located on the back of her right hand, featuring a triangular facet. The front and back are symmetrical. It is an octahedron, specifically a truncated trigonal dipyramid. "Off Colors"
Rutile gemstone correction
The Rutile Twins' red "Y"-shaped conjoined gemstone is located on their navel. Presumably, from conjoining during formation, the gemstone is in two connected perpendicular sections.
EmeraldGemJirachi
Emerald's gemstone is located where her right eye would otherwise be. It is dark-green, rectangular, and has facets around the edge. "Lars of the Stars"
JadeLeftGemstone
The yellow-green Jade's gemstone is located on her right cheek. It resembles a cabochon, a gemstone that has been polished, but not faceted. "Together Alone"
JadeRightGem
The blue-green Jade's gemstone is located on her left cheek. It resembles a cabochon, a gemstone that has been polished, but not faceted.
SnowflakeObsidianGem1
Snowflake Obsidian's gemstone is located on the back of her right hand. It is unfaceted and round in shape.[3] "Change Your Mind"
OceanOtherGemByYellowKhwatsi
Blue Lace Agate's gemstone.
ZebraJasperGemstone
Zebra Jasper's gemstone is diamond-shaped and unfaceted. It is located on her chest.
LaceAmethystGemstone
Lace Amethyst's gemstone.
SpinelGemRender
Spinel's gemstone is located on her chest. It is in the shape of an upside-down heart. Steven Universe: The Movie
ResetSpinelGemRender
Spinel's gemstone when rightside-up, as seen on her original/reset form.
UnknownPinkGemByThunderlina
Cherry Quartz's gemstone is located on her navel, featuring a hexagonal facet with blotches. "Little Homeschool"
FlintGemstone
Flint's gemstone is located on her chest, featuring a hexagonal facet. "Homeworld Bound"
ChertGemstone
Chert's gemstone is located on her nose, featuring a hexagonal facet.

"Duplicate" Gemstones

Image Description Gems Debut
NewRubyGem2
All Rubies shown have this red gemstone. It has a square facet. It also has a light red ring around the edge (normally hidden inside the Gem's body) and is flatter on the back. Other than the Crystal Gems' Ruby and the members of the "Ruby Squad," minor Rubies in "The Answer" and "Together Alone" also have this gemstone. "Eyeball" has her gemstone where her left eye would be.

"Doc" has her gemstone on her chest.

"Navy" has her gemstone on her navel.

"Army" has her gemstone on her left shoulder.

"Leggy" has her gemstone on her left thigh.

"Barn Mates" ("Eyeball"), "Hit the Diamond" (rest of Ruby Squad), "The Answer" & "Together Alone" (others)
AmethystGem2
Some Amethysts have this purple gemstone. It has a hexagonal facet. It also has a ring around the edge (normally hidden inside the Gem's body). Other than the Crystal Gems' Amethyst, some Homeworld Amethysts have this gemstone in "Gem Heist", "The Zoo", and "That Will Be All" (including "8XG", "8XJ", and "8XL").

Amethyst Facet-5 Cut-8XG has her gemstone on the back of her right hand.

Amethyst Facet-5 Cut-8XJ has her gemstone on her left shoulder.

Amethyst Facet-5 Cut-8XL has her gemstone on her right hip.

"Gem Heist", "The Zoo", "That Will Be All"
Left Hand Amethyst Gem
Some Amethysts have this very light purple gemstone. It has a hexagonal facet. It also has a ring around the edge (normally hidden inside the Gem's body). It is seen on the back of one Homeworld Amethyst's right hand in "Gem Heist." "Gem Heist"
Army Amethyst Gem
Some Amethysts have this red-violet gemstone. It has a square facet, uncommon in Amethysts (it is possibly an animation error). It also has a ring around the edge (normally hidden inside the Gem's body). It is seen on one Homeworld Amethyst's left shoulder in "Gem Heist".
Right Eye Amethyst Gem
Some Amethysts have this mauve gemstone. It has a hexagonal facet. It also has a ring around the edge (normally hidden inside the Gem's body). It is seen on one Homeworld Amethyst's right eye in "The Zoo". "The Zoo"
Right Hand Amethyst Gem
Some Amethysts have this faded-purple gemstone. It has a hexagonal facet. It also has a ring around the edge (normally hidden inside the Gem's body). It is seen on a few Homeworld Amethysts in "The Zoo".
Right Cheek Amethyst Gem
Some Amethysts have this medium-purple gemstone. It has a hexagonal facet. It also has a ring around the edge (normally hidden inside the Gem's body). It is seen on one Homeworld Amethyst's right cheek in "The Zoo" and "That Will Be All". "The Zoo", "That Will Be All"
Su homeworld jasper gems
Some Jaspers have this orange and yellow gemstone. It has a circular cut with no facet. It is seen on multiple Homeworld Jaspers in "That Will Be All" (including "Skinny" Jasper).

The defective "Skinny" Jasper has her gemstone on her navel.

"That Will Be All"
Squaridot Gemstone By TheOffColors
Some Peridots have this light-green gemstone. It has a triangular cut with facets. It is seen on the Save the Light boss and Homeworld Gem "Squaridot", located in place of her left eye. Save the Light
Topazgem
All Topazes shown have a yellow, circular gemstone containing a large-centered circular facet with small, triangular facets in-between. It is seen on the two unfused Topazes', located respectively on the left and right sides of their head. Their fusion has her gemstones on both sides of her head. It is also seen on various Topaz in "Now We're Only Falling Apart", "Familiar" and Change Your Mind. "Are You My Dad?", "Now We're Only Falling Apart", "Familiar", "Change Your Mind"
ZafiroMejillaByYellow
Some Sapphires have an indigo-blue gemstone. It has a triangular facet. It also has a ring around the edge (normally hidden inside the Gem's body). It is seen on one Homeworld Sapphire's left cheek in "Together Alone". "Together Alone"
ZafiroPechoByYellow
Other Sapphires have a different indigo-blue gemstone. It has a triangular facet. It also has a blue ring around the edge (normally hidden inside the Gem's body). It is seen on one Homeworld Sapphire's chest in "Together Alone".
Nephrite Gem by Kyrope (From 2. Movie Trailer)
The gemstones of Nephrite's crew. It is a lime green gemstone with no facet. It is seen on the chests of two Nephrites and in the navel of another. Steven Universe: The Movie, Steven Universe Future
NavelLapisGem
Nice Lapis' gemstone. It is a blue teardrop-shaped gemstone with no facet. It is placed on Nice Lapis' navel. "Why So Blue?"
ShoulderLapisGem
Mean Lapis' gemstone. It is a blue teardrop-shaped gemstone with no facet. It is placed on Mean Lapis' left shoulder. "Why So Blue?"

Corrupted Gemstones

Image Location Debut
Centepeetle GemPNG
Nephrite's (the Centipeetle Mother's) gemstone is located where her single eye would be. While corrupted, her "eye" gemstone is in her Oropharynx (back of the throat). It is a sphere with a "pupil" in the center. The ring around the gem is damaged into a curve. The idea of corrupted gemstones being physically damaged appears to have been retconned out of the series. "Gem Glow"
Nephrite gem
Nephrite's gemstone after Steven used his healing abilities. "Monster Reunion"
WormGembyJirachi23
Orange Spodumene's (the Worm Monster's) gemstone is located in the Oropharynx. It has 7 facets that meet at the center. "Bubble Buddies"
PyramidTemple-WhiteGemstone
The Pyramid Temple's gemstone is located in the center of the Temple within the Obelisk.[4] It is shaped like an equilateral diamond and has four facets with a smaller sized diamond-shaped center facet. "Serious Steven"
DGlassGemJirach23
The Desert Glass gemstone is located at the center of the pillow; it resembles an actual desert glass. It is circular and has many facets in abstract shapes. "Steven's Lion"
CMGemJirachi23
The Gem Cave Creature's gemstone is located somewhere within her central disc. It is shaped like an icosahedron, with spikes at each point of a triangle-shaped facet. "Arcade Mania"
BirdshardsJirachi23
The Big Bird's Gem Shards do not have a known location, but each shard is the gemstone of a much smaller bird. "Giant Woman"
HandEBGemJirachi23
The Heaven Beetle and Earth Beetle's gemstones are located on their backs. They are both shaped like diamonds and have four facets with a diamond-shaped center facet. "Giant Woman"
WatermelonTourmalineGem1 Watermelon Tourmaline's (the Giant Pufferfish's) gemstone location is unknown. It is shaped and colored like a watermelon slice. "Beach Party" (Giant Pufferfish)
"Change Your Mind" (gemstone)
D75E72BE-D621-48C9-ABCF-4E12AA290CA5

Larimar's (the Ice Monster's) gemstone is in the center of her head (tridimensional center). It appears to have 6 facets and an oblong-shaped center facet, despite the "crack" on the 6th facet.

"Steven Universe: The Movie"
Gem Invisible MonsterPNG
The Invisible Gem Monster's gemstone is located in the middle of her chest. It has two facets tenting at the middle of the front part of the gem. The back of the gemstone is cone-shaped. "Island Adventure"
LHGemJirach23
The Lighthouse Gem Monster's gemstone does not have a known physical location. It has triangular facets and a circular center facet. Its shape and facet resemble the Topazes' gemstones, with the only difference being color. "Horror Club"
Water Bear Gemstone By King
The Water Bear's gemstone is located in the mouth. It is shaped like a cone and has a single circular facet. "Love Letters"
SlinkersGem The Slinker's gemstone is located at the junction between the body and the head. It is an oblong cabochon. "Reformed"
Crab Gem Blue
Bixbite's (the Crab Gem Monster's) gemstone has an unknown location. It appears green due to the color palette. "Rising Tides, Crashing Skies"
OceanJasperGem1
Ocean Jasper's (the Snow Monster's) gemstone is located on her chest. "Gem Hunt"
Biggs Jasper Gemstone.
Biggs Jasper's (the Orange Great North Monster's) gemstone is located on her chest.
QuartzMonsterGem
The Cobbled Beta Kindergarten Monster's gemstone is located on her chest.

"Earthlings"

GreenQuartzMonsterGem
The Green Striped Beta Kindergarten Monster's gemstone is located at her chest.
RedQuartzMonsterGem
The Red Striped Beta Kindergarten Monster's gemstone is located on her chest.
PurpleQuartzMonsterGem
The Purple Striped Beta Kindergarten Monster's gemstone is located on her chest.
OrangeQuartzMonsterGem
The Spotted Beta Kindergarten Monster's gemstone is located on her chest.
UCGGem
The Tongue Monster's gemstone is located at her nose. "Kindergarten Kid"
FlowerMonsterGemstone by Perimarine
The Flower Monster's gemstone appears to be located somewhere within her body. Its location when uncorrupted is unknown. "Back to the Kindergarten"

Cracked Gemstones

Image Description Debut
NewAmyCrack
Amethyst's cracked gemstone. "An Indirect Kiss"
BackCrackGem
Lapis Lazuli's cracked gemstone. "Mirror Gem"
Ice Monster GemPNG
Larimar's gemstone while corrupted had a crack on the 6th facet. "Monster Buddies"
Eye
"Eyeball"'s cracked gemstone. "Bubbled"
BiggsJasperGemstoneSimplistic cracked
Biggs Jasper's (simplistic) cracked gemstone. "Volleyball"
FlintCrackedGemstone
Flint's cracked gemstone. "Homeworld Bound"
ChertCrackedGemstone
Chert's cracked gemstone.

Shattered Gemstones

Image Description Debut
JasperGemShattered
Jasper's shattered gemstone. "Fragments"

Fusion Gemstones

Image Location Debut
Garnet ruby gem day
Ruby's gemstone on Garnet. "Gem Glow"
Garnet sapphire gem day
Sapphire's gemstone on Garnet.
OpalHeadGem3
Pearl's gemstone on Opal. "Giant Woman"
Opal ChestGem Day
Amethyst's gemstone on Opal.
Sugilite amethyst gem twilight
Amethyst's gemstone on Sugilite. "Coach Steven"
NewSugiliteGem
Ruby's gemstone on Sugilite.
Sugilite sapphire gem twilight
Sapphire's gemstone on Sugilite.
Alexandrite Head Gemstone Day
Pearl's gemstone on Alexandrite. "Fusion Cuisine"
Alexandrite Chest Gemstone Day
Amethyst's gemstone on Alexandrite.
Alexandrite Left Hand Gemstone Day
Ruby's gemstone on Alexandrite.
Alexandrite Right Hand Gemstone Day
Sapphire's gemstone on Alexandrite.
Stevonnie Gem
Steven's gemstone on Stevonnie and Steg. "Alone Together", Steven Universe: The Movie
MalachiteLapisGem
Lapis' gemstone on Malachite. "Jail Break"
Malachite Nose Gem redo redo
Jasper's gemstone on Malachite.
Rainbow Quartz Forehead Gem
Pearl's gemstone on Rainbow Quartz and Rainbow Quartz 2.0 "We Need to Talk", "Change Your Mind"
RainbowQuartzGemRose
Rose and Steven's gemstone on Rainbow Quartz and Rainbow Quartz 2.0.
Sardonyx Pearl Gemstone
Pearl's gemstone on Sardonyx. "Cry for Help"
Sardonyx Ruby Gemstone
Ruby's gemstone on Sardonyx.
Sardonyx Sapphire Gemstone
Sapphire's gemstone on Sardonyx.
SmokyQuartzGem(Amethyst)
Amethyst's gemstone on Smoky Quartz. "Earthlings"
SmokyQuartzGem(Steven)
Steven's gemstone on Smoky Quartz.
Quartzfusion2
Jasper's gemstone on Zebra Jasper.
Zebra Jasper Fusion Gemstone 2
Ocean Jasper's gemstone on Zebra Jasper.
NewRubyGem2
Doc's, "Eyeball"'s, Army's, Navy's, and Leggy's gemstones on the same-gem Ruby quintuple fusion. "Hit the Diamond "
Topazgem
The two unfused Topazes' gemstones on the same-gem Topaz fusion. "Are You My Dad?"
Rhodonite Pearl Gemstone By SaltyPearl
An unknown component Pearl's gemstone on Rhodonite. It resembles a cabochon; a gemstone that has not been faceted but has been polished. It is located on her chest. Its real colors are unknown due to being covered by a transparent shawl, but it can be presumed to be colored like that of her Ruby component. "Off Colors"
Rhodonite Ruby Gemstone By SaltyPearl
An unknown component Ruby's gemstone on Rhodonite. It has a square facet, and is a decahedron, specifically a truncated tetragonal dipyramid. It is located on her navel.
Fluorite Forehead Gemstone palette by TheOffColors
Fluorite's first unknown component's gemstone is located on her forehead. It is unfaceted and triangular in shape.
Fluorite Eye gemstone palette by TheOffColors
Fluorite's second unknown component's gemstone is located on her forehead. Although animation inconsistencies lead to this gemstone changing cuts often, it can be seen in her model sheet that it has a circular facet.
Fluorite chest gem palette by TheOffColors
Fluorite's third and fifth unknown components' gemstones are located on her chest. They are both unfaceted and triangular in shape.
Fluorite chest gem 2 palette by TheOffColors
Fluorite's fourth unknown component's gemstone is located on her chest. It is unfaceted and circular in shape. Additionally, it is reminiscent of Yellow and Blue Pearl's gemstones.
Fluorite naval gemstone palette by TheOffColors
Fluorite's sixth unknown component's gemstone is located on her navel. It has a rhomboidal facet.
Jade (fusion) Gemstone
The two unfused Jades' gemstones on Lemon Jade "Together Alone"
SunstoneGemByYellow
Steven's gemstone on Sunstone "Change Your Mind"
SunstoneGemRuby
Ruby's gemstone on Sunstone
SunstoneGemSapph
Sapphire's gemstone on Sunstone
PearlObsidianGem
Pearl's gemstone on Obsidian
Ru,Sa,Am,StGem
The gemstones of Amethyst, Steven, Ruby, and Sapphire on Obsidian.
Mega Pearl Gem (Pearl)
Pearl's gemstone on Mega Pearl. "Volleyball"
Mega Pearl Gem (Pink Pearl)
Pink Pearl's gemstone on Mega Pearl.
BluebirdAzuriteAquamarineGem
Aquamarine's gemstone on Bluebird Azurite. "Bluebird"
BluebirdAzuriteRubyGem
"Eyeball"'s gemstone on Bluebird Azurite.

Forced Fusion Gemstones

Image Description Debut
Multi-gem freakin' gemstone
The Hand Cluster's gemstone is a mix of four different gems joined into a single gemstone. It is located in the center of its "palm".

"Keeping It Together"

Shard2
A smaller Cluster taking the form of two forearms has two Gem Shards fused together into a V-shape, with smaller pieces stuck around the joint. One is blue, the other is purple. The shards are internal.
Bed Cluster Gem
The gemstone of the six-armed Bed Mutant - three shards fused at one point, one shard teal, the other red, and the other gray.

"Nightmare Hospital"

Hallway Cluster Gem By King
The gemstone of the lumpy Hallway Mutant. A purple squarish shard, with small blue and yellow shards attached.
Cluster - Pedra - Media
The gemstone of the cluster with a light green head that has one eye and mouth on its face, a light blue body and left hand, a big green foot as it is right hand, and purple lower body.

"When It Rains"

Clustergem1luke
The giant white hand cluster's gemstone.
LightBlueClusterGem
The blue hand with seven fingers and a foot cluster's gemstone.
BlueOrangeClusterGem
The cluster with a round violet body, three blue limbs, and an eye's gemstone.
OrangeBlueClusterGem
The small cluster with a blue hand and red leg's gemstone.
BluePurpleClusterGem
The cluster with a big blue hand, and pink foot's gemstone.
Clustergemred
The cluster with three tumors' gemstone. "Gem Drill"

Unclassified Gemstones

Image Location Debut
LightGreenGemStone4
This bubbled gemstone inside the Burning Room does not have a known physical location. "Together Breakfast"
UnknownGreenGem4
This bubbled gemstone inside the Burning Room does not have a known physical location.
Pink Diamond27
This bubbled gemstone inside the Burning Room does not have a known physical location.
BlueGreenGemStonenew
This bubbled gemstone inside the Burning Room does not have a known physical location.
DarkLightBlueStonegem
This bubbled gemstone inside the Burning Room does not have a known physical location.
Gem Shards transparent
These Gem Shards do not have a known physical location. "Frybo"
Pyramred
This bubbled gemstone inside the Big Bird does not have a known physical location. "Giant Woman"
Greenknowngem
This bubbled gemstone inside the Big Bird does not have a known physical location.
RedBuble
This bubbled gemstone inside the Big Bird does not have a known physical location.
PinkgreenGam
This bubbled gemstone inside the Big Bird does not have a known physical location.
6redgem
This bubbled gemstone inside the Big Bird does not have a known physical location.
PinkGen
This bubbled gemstone inside the Big Bird does not have a known physical location.
Diapinkgem
This bubbled gemstone inside the Big Bird does not have a known physical location.
BrokenPurpleGem
This bubbled gemstone inside the Big Bird does not have a known physical location.
CrownPink
This bubbled gemstone inside the Big Bird does not have a known physical location.
CylinderPinkGem
This bubbled gemstone inside the Big Bird does not have a known physical location.
LightPinkStone
This bubbled gemstone inside the Big Bird does not have a known physical location.
DarkredG
This bubbled gemstone inside the Big Bird does not have a known physical location.
SpikyPurple
This bubbled gemstone inside the Big Bird does not have a known physical location.
BrownOrangeGem2
This bubbled gemstone inside the Big Bird does not have a known physical location.
GreenRectangulArgem
This bubbled gemstone inside the Big Bird does not have a known physical location.
LightcrystaLPink
This bubbled gemstone inside the Big Bird does not have a known physical location.
LightYellowgeM
This bubbled gemstone inside the Big Bird does not have a known physical location.
PinkcrystAL
This bubbled gemstone inside the Big Bird does not have a known physical location.
PinkCrystalindiagonal
This bubbled gemstone inside the Big Bird does not have a known physical location.
PinkDiamondshapGem
This bubbled gemstone inside the Big Bird does not have a known physical location.
PinkhexageM
This bubbled gemstone inside the Big Bird does not have a known physical location.
SpherelightGreenGem
This bubbled gemstone inside the Big Bird does not have a known physical location.
SpherepinKGem
This bubbled gemstone inside the Big Bird does not have a known physical location.
StoneBrowngeM
This bubbled gemstone inside the Big Bird does not have a known physical location.
UnknowngeMPinkstone
This bubbled gemstone inside the Big Bird does not have a known physical location.
YellownotSquareGem
This bubbled gemstone inside the Big Bird does not have a known physical location.
YellowUnknownStone2
This bubbled gemstone inside the Big Bird does not have a known physical location.
PurplishPinkGemStone
This bubbled gemstone inside the Big Bird does not have a known physical location.
Hexagem
This bubbled gemstone inside the Crystal Temple does not have a known physical location. "Monster Buddies"
Triegem
This bubbled gemstone inside the Crystal Temple does not have a known physical location. This gem resembles the Triforce from "The Legend of Zelda" video game series.
Unknowngem10
This bubbled gemstone inside the Crystal Temple does not have a known physical location.
Stogem
This bubbled gemstone inside the Crystal Temple does not have a known physical location.
Stogem2
This bubbled gemstone inside the Crystal Temple does not have a known physical location.
Stogem3
This bubbled gemstone inside the Crystal Temple does not have a known physical location.
Stogem4
This bubbled gemstone inside the Crystal Temple does not have a known physical location.
Stogem5
This bubbled gemstone inside the Crystal Temple does not have a known physical location.
Stogem7
This bubbled gemstone inside the Crystal Temple does not have a known physical location.
Stogem8
This bubbled gemstone inside the Crystal Temple does not have a known physical location.
Stogem9
This bubbled gemstone inside the Crystal Temple does not have a known physical location.
Stogem10
This bubbled gemstone inside the Crystal Temple does not have a known physical location.
Stogem11
This bubbled gemstone inside the Crystal Temple does not have a known physical location.
SecretGemShards
These Gem Shards do not have a known physical location. "Secret Team"
Gemtones
This bubbled gemstone inside the Crystal Temple does not have a known physical location.
OrangeGarnetsUniverse
This gemstone that Garnet bubbled does not have a known physical location. It is called "the sacred magic gem of ultimate power" in Steven's story of how he thought Garnet obtained it. "Garnet's Universe"
PurplecirclGem
This gemstone that Garnet bubbled does not have a known physical location. "Warp Tour"
Ungem8
This gemstone that Garnet bubbled does not have a known physical location. "Story for Steven"
Ungem7
This gemstone that Garnet bubbled does not have a known physical location.
KinderGartenKidGem
This gemstone that Garnet bubbled belongs to a Corrupted Gem whose gemstone placement is unknown. "Kindergarten Kid"
UnknownBlueYellowGemstone
The physical location of each of these gemstones is unknown. "Change Your Mind"
UnknownDarkBlueGemstone
UnknownGreenGemstone
UnknownLavenderGemstone
UnknownLightBlueGemstone
UnknownMagentaOrangeGemstone
UnknownOliveGreenGemstone
UnknownOrangeGemstone
UnknownPaleLavenderGemstone
UnknownPinkGemstone
UnknownPinkMagentaGemstone
UnknownRedGemstone
UnknownSkyBlueGemstone

Comic Gemstones

Image Location Debut
CloudGemNew
It is located in the upper part of the Rainbow Cloud Monster. Issue 1: Main Story
Sea Monster Gemstone
The gemstone is located on the Invisible Manta Ray's chest. Issue 3: Open Mic
Catterpillar Gemstone
The gemstone is located on the Slug Monster's mouth. Issue 4: Taxi
Book Gemstone
It was attached to the Old Book. Issue 5: Library: Part One
SnowBeastGem
It is located in the head of the Snowbeast. Issue 5: Winter in July
PlantGem2
It is located inside the Plant Monster's mouth. Issue 7: Storytime
ClockGemJirachi23
It is attached to the center of the clock. Issue 8: Clockwork
GBGem
It is located in the Torso of the Giant Bird. Universe and the Moon
Game Gemstone
It was attached on the Corrupted Game. Gregarious Gamers
ObeliskGemstone
The comic Obelisk's gemstone. Her gemstone placement is unknown. Issue 1: Main Story
7ComicGem
The gemstone Garnet bubbled on the cover of Issue 7. Issue 7: Storytime
Glass Ghost Gemstone
It is located inside the left part of the Glass Ghost's chest. Issue 1 (Steven Universe & The Crystal Gems)
SlimeGem
The Slime Gem Monster's gemstone. The Big Donut Special
UnknownBirdGem
The Red Bird Gem Monster's gemstone. Steven Universe Issue 1 (2017)
Molluskgem1
The first Mollusk's gemsone. Steven Universe: Too Cool for School
Molluskgem2
The second Mollusk's gemstone. Steven Universe: Too Cool for School
UnknownGemIssue5
The gemstone Garnet was bubbling in Issue 7 (2017). Issue 7 (2017)
RedEelGem
The Red Eel Monster's gemstone. Issue 7 (2017)
ComicLizardGem
The Monster Lizard Gem's gemstone. Issue 8 (2017)
Ant Gem Monster Gemstone
The Ant Gem Monster's gemstone. Issue 1 (Steven Universe & The Crystal Gems)
Mole Monster Gemstone
The Mole Gem Monster's gemstone. Issue 14 (2017)

Video Game Gemstones

Unfused

Image Description Gems Debut
Squaridot Gemstone By TheOffColors
Some Peridots have this lime-green gemstone. It has a triangular cut with facets. It is seen on the Save the Light boss and Homeworld Gem "Squaridot", located in place of her left eye. Save the Light
HessoniteGemstone2
Hessonite's gemstone is located on her chest. It is red-orange and somewhat rectangular, and has facets around the edge. Hessonite
Demantoid Gemstone by RylerGamerDBS
Demantoid's gemstone is located in her hair. It is green and somewhat rectangular, and has facets around the edge, looking similar to Hessonite's gem. Demantoid Unleash the Light
Pyrope Gemstone by RylerGamerDBS
Pyrope's gemstone is located on her midsection. It is red-pink and rectangular in shape, and has facets around the edge, looking similar to Hessonite's gem. Pyrope
Lonely Pearl
Lonely Pearl's gemstone is located on her chest. It is an ellipsoidal cabochon (facetless). Lonely Pearl The Phantom Fable
Jasper (Eyeball) Gemstone
Jasper's gemstone is located on her left eye. It is orange and yellow, and it is circular in shape. It resembles a cabochon, a gemstone that has been polished, but not faceted. Jasper (Eyeball)

Unclassified

Image Description Gems Debut
Domegemstone
This appears in the small dome that appears randomly. It is unknown which Gem this belongs to. Heap of Trouble
Heapstone
This appears in the forehead of a statue that appears randomly.

Trivia

  • Many known Gems are also real-world birthstones (main or alternatives). All months (except December) have had their main birthstone appear (bolded), while March, June, August, and December have alternate birthstones that have not appeared (italicized).
  • The real life 'meanings' of gemstones often correspond with some Gems' personalities.
    • Amethyst is a stone associated with love. The stone itself is associated with Dionysus, the god of wine and intoxication. Amethyst is not a clear thinker but is fun-loving.
      • This is also shown with the other Amethysts shown, who are good-natured.
    • Pearl is a stone associated with purity. Pearl is mature, wise, and perfectionistic.
    • Garnet is a stone that protects from evil. Garnet is the most powerful of the Crystal Gems and often saves the day. She is also the current de facto leader of the Crystal Gems.
      • Rubies are also associated with protection, and most Rubies are guards, therefore fulfilling a role of protection.
      • Sapphires on the other hand, are associated with wisdom and mind healing. Sapphire is shown to be very mindful and intelligent.
    • Rose Quartz is a stone associated with love and joy. Steven is the most caring, and upbeat of the Gems, and Rose Quartz was very loving and had a joyful personality.
    • Smoky Quartz is a stone that turns negativity into positivity, fosters cooperation, and helps wishes and personal goals to become true; Smoky Quartz is made when Amethyst accepts Steven's help by turning all her negative traits as a "runt" into actual positives, and thanks to them, Amethyst's goal of defeating Jasper is made true.
    • Lapis Lazuli is a stone associated with gods and power. She is a powerful Gem, nearly capable of defeating the Crystal Gems while controlling the Earth's entire ocean, in the midst of a cracked gem.
    • Peridot is a stone associated with the heart chakra, bringing balance and relieving stress. Peridot is shown to be level-headed and calculated, if not passionate about her work. She is also physically resilient.
    • Jasper is a stone associated with compassion and maternity, ironic considering Jasper's savage and aggressive temperament.
      • However, the gemstone is also associated with fire, so this could lead to Jasper's ill-temper.
        • Despite this, the other Jaspers shown were good-natured much like the Amethysts, so Jasper might be an exception.
    • Zircons, in real life, are known for "repelling negative energy", somewhat fitting with the defending Zircon's lawyer occupation.
    • Diamonds are associated with innocence and integrity of moral values. These traits run counter to the portrayal of most of the Diamond Authority but fits Pink Diamond and her son/reincarnation Steven.
      • Pink diamonds are also said to enhance creativity. Pink Diamond was said to be creative, and Steven can be very creative as well.
        • Pink diamonds also can clear malevolence from their owners, which fits with Steven/Pink Diamond wishing to uncorrupt gems. 
    • Spinels are gems said to dispel negative energy by purifying it, and it is also known to increase creativity and preserve youthfulness. While the former could be analogous to Spinel's positive and goofy (former) personality, the latter might be an ironic jab towards her use of the Gem Rejuvenator.
      • It can also be analogous to her being Pink Diamond's best friend/playmate.
  • Although the gemstone being exposed is largely cultural, given that some corrupted Gems have had them internally, Steven once expressed discomfort as a baby when his baby onesie covered his gemstone.
  • Their gemstone placement seems to correspond to their personalities, actions, and how they think.
    • Amethyst's gemstone is near to the location of a human heart; she tends to be fun-loving and often does whatever she wants.
      • Bismuth's gemstone placement is quite similar, in the sense that she "follows her heart", and her emotions tend to be intense.
    • Pearl's gemstone is on her forehead; she tends to over-think things, has a perfectionist mindset, as well as being very intelligent.
    • Garnet's gemstones are in her hands; she tends not to talk often and respond through action instead.
      • Ruby's gemstone is located on her left hand; the left arm is connected to the heart, indicating her emotionalness.
      • Ruby's and Sapphire's gemstones are located on one of their hands - when they fuse into Garnet, they become symmetrical and complete each other.
    • Steven's gemstone is over his stomach; he tends to go with his gut instinct and is often hungry, and he is very loving and caring.
      • Rose Quartz/Pink Diamond herself is very caring and loving, and also has "hunger" for knowledge about Earth. Additionally, the navel connects to the umbilical cord, and indicates a maternal nature.
    • Lapis Lazuli's gemstone is placed over the center of her spine; she sprouts wings from her gemstone and has been shown to be very vulnerable emotionally.
      • Rebecca Sugar has stated that a gemstone placed on the back indicates vulnerability and a lack of control over "what's going on with you."[5]
    • Peridot's gemstone is on her forehead; she is shown to be very intelligent (a trait she shares with Pearl) and dedicated to her mission.
    • Jasper's gemstone is placed over her nose; she is very self-centered and primal; it may also indicate being "hard-nosed", or determined and tough-minded.
    • Yellow and Blue Diamond have their gems on their chests, as they are considered "matriarchs" and have a high placement in the caste.
      • Additionally, Blue Diamond's placement may refer to her merciful side.
      • Yellow Diamond's placement may refer to her snobbish and stuck up personality.
    • Holly Blue Agate's gem is located on the back of her head, possibly alluding to the saying "to have eyes in the back of your head" (indicating her desire to keep everything under control, even when her back is turned).
    • Aquamarine's tear-shaped gemstone is under her eye; this false tear shows her deceitful nature disguised by her innocent appearance. This tear similarity is even jokingly and sarcastically referenced by Aquamarine in "Stuck Together".
      • In real life culture, a teardrop tattoo placed under the eye can often mean the wearer has killed someone or that they or a loved one has spent time in prison.
    • Topaz has her components' gemstones on her ears; she tends to obey the caste system and silently listen to Aquamarine's orders. In "Stuck Together", Topaz also intently listens to Lars and Steven's emotional conversation, causing her to open up and go against Aquamarine's orders.
    • White Diamond's gemstone is on her forehead, representing her high rank amongst all gems.  Similarly to Pearl, it could also indicate her perfectionist mindset.
    • Spinel's gemstone is on her chest, she was formerly fun-loving and passionate, but upon her being abandoned became heartbroken and angered.
  • The most common gemstone placement is the chest.
  • Although all classified as gemstones, other materials have been called such. Examples are Bismuth's gem, which is a metal, and the Glass Ghost's gem, which is a glass shard.
    • However, both are considered gems for different reasons; glass is considered clear enough to be a gem, and bismuth has been found within quartz crystal.

Gallery

Design Gallery

Click to view the designs for
Gemstones.


References

ve Objects
Food & Beverages Bagel SandwichBeastChaaaapsCheese BallsColonel Kernel's Classic Creamed CornCookie CatDog-NutDrink UpDurian JuiceFantastic FriesFry BitsGuacolaHynes KetchupLion LickersMargarineNut-DogPizza BagelPop-PopPotato ChipsSadie's LunchesSpicy PretzelsSugar Shock Shut DownTogether BreakfastUbeWaflWhip It UpYummy Apple Juice
Magical Items Crystal HeartData StonesDiamond Aura BottlesEternity ChaliceEvil Spirit ScrollFire SaltGarnet's GogglesGem BubblesGem PedestalsGem ShardsGemstonesGeodeHarmony CoreThe HourglassLight PrismThe MirrorMoon Goddess StatueObeliskOld Book GemThe Perils of PweepweeShooting StarVolatile GemsWailing StoneWarp Pad
Musical Instruments Amethyst's DrumsConnie's ViolinGarnet's KeytarGreg's GuitarPearl's ViolinSteven's UkuleleWarp Whistle
Weapons The Axes of AgesBreaking PointConnie's SwordGem DestabilizerGem RejuvenatorGem WeaponsLaser Light CannonPearl's SwordsQuartizine TrioRose's Sword
Holding Items Cheeseburger BackpackHot Dog Duffel BagRose's ScabbardRose's Treasure ChestTiger Millionaire's Suitcase
Vehicles Earth: Andy's PlaneDondai SupremoGreg's VanHandmade SpaceshipInflatable RaftJenny's CarHot 2 TotMach 2Mystery Girl's MotorcycleOnion's MopedPolice CruiserRonaldo's ScooterS.S. Misery/S.S. Li'l LappySoapbox Derby CarSteven's BikeMinor Objects/Vehicles#Steven's ScooterThe Universe Mach 3Yellowtail's Boat

Homeworld: Aquamarine's ShipAttack PodDestiny DestroyerDiamond Palanquins (Blue Diamond's PalanquinPink Diamond's Palanquin) • Diamond Ships (Blue Diamond's ShipPink Diamond's ShipWhite Diamond's ShipYellow Diamond's Ship) • Emerald's Personal ShuttleEscape PodGem WarshipHessonite's WarshipHomeworld Dropship (Ancient Gem Colony Ship) • Roaming Eye
Crystal Gems: Gem DrillGem Sloop
Off Colors: Sun IncineratorStar Skipper

Rides The AppalachianHyper SpaceJelly JigglerThe TeacupsTsunami
Games Citchen CalamityGolf Quest Mini

Arcade Games: Chrono Panic 4Meat Beat ManiaPunch BuddyRace RushRoad KillerSkee BallTeens of RageVirtua Teens of RageWhacker ManWhacker Man Jr.

TV Shows Camp Pining HeartsCanine CourtCrying Breakfast Friends!I Can't Believe My Stepdad's My SwordKoala PrincessLi'l ButlerUnder the Knife
Books BrigandBuddy Buddwick's JournalCarrion Amongst The CloverFOINEHow to Talk to PeopleLonesome LassoNOICEThe No Home BoysPassions of XanxorPretty HairstylistThe Spirit Morph Saga (The Unfamiliar Familiar)
Movies Dogcopter 3Evil Bear 2: Bearly AliveLonely Blade (Lonely Blade IVLonely Blade V)
Toys Alien Finger PuppetBass Fish Toy • Water Gun

Plush Toys: Master of Ceremonies Bear Bear • M.C. Bear Bear • Mr. Queasy • Peridot's Alien • Playful KittySir Bearington
Action Figures: B.O.Y.S.G.A.L.S. (Explorer Gal) • G.U.Y.S. (Dave Guy • Ranger Guy)
Props: Cluster PuppetGiant Cellphone PropJungle BucksWall Street Jungle Newspaper Prop

Machines Crystal Gem Machines: Pearlbot
Homeworld Machines: Gem SatelliteRed EyeInjectors (Attack InjectorsSpinel's Injector) • Shattering RobonoidsShell
Peridot's Machines: Crystal Gems: Attack DronesPeribotVisor Robonoids
Homeworld: Robonoids (Flask RobonoidsHand RobonoidPlug Robonoids)
Other Machines: Harmony Core SentriesRobot Shooty Thing
Misc. Items Aquamarine's WandThe Armor of the FallenBeach City StageBlue Diamond's Personal EffectsConnie's Glow BraceletChalkboardCurrencyDiamond CommunicatorDuct TapeGiant PennyGreg and Rose's PictureGreg's Music CollectionG.U.Y.S. DispenserHarpoon GunThe Heretic's AnguishKerry MoonbeamLimb EnhancersLubitz Cardioid Condenser 680Metal MuttMr. Universe ShirtOld Gem PaintingOnion's Birthday TapePearl's TreePeridot's Voice RecorderThe Philosophy Majors - Nietzsche's BreakdownPink Diamond's Personal EffectsPink Pearl's Ribbon WandReplicator WandRonaldo's PhoneRose Quartz's Video TapeRose's Battle FlagRose's PaintingSea PalsSoul BlasterSpace Train to the CosmosSteven's Birthday SuitSteven's MugSteven's PhoneSteven's TVSteven's Video Game SystemsT-Shirt CannonTag Team BeltTelescopeTemple GateTubeTubeVIP(IZZA)Weirdstar.StreamYellow Diamond Signal Flare
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