Homeworld Gems

"Homeworld Gems" is a term used by the cast, crew and fandom to refer to the known, non-corrupted Gems who are or have been affiliated with the Gem Homeworld and are not members of the Crystal Gems.

Yellow Diamond
Seems to have authority over the other members. For example, she is the supervisor of Jasper and Peridot.

Peridot
A naturally short, professional technician with the sole mission of checking progress on the Cluster. She is currently captured by the Crystal Gems, and is residing in Steven's bathroom.

Jasper
The brute force of the group, once a great warrior in war. Currently stranded on Earth and stuck fused with Lapis Lazuli as Malachite.

Unnamed Warrior Gem ("Sworn to the Sword")
Last seen fighting against Rose Quartz and Pearl during the rebellion. Current status unknown. Looks similar to Jasper, although unconfirmed.

Lapis Lazuli
Independent, allied with Steven, who despite this is forced to act as an informant to Peridot. Currently fused with Jasper as Malachite, likely still has a grudge against the Crystal Gems.

Malachite
Fusion of Lapis Lazuli and Jasper. Allegiance unknown. Currently trapped under the ocean at an unknown location.

Former Members

 * Some of the members of the Crystal Gems; cut ties with the Homeworld Gems to stop them from harming the earth and started the war known as "The Rebellion".
 * Rose Quartz
 * Pearl
 * Garnet
 * Ruby
 * Sapphire

History
Over 5,000 years ago, the Homeworld Gems arrived on earth using the Gem Colony Ships and soon after, built the warp pads for faster and easier traveling. During the time they had on Earth, they had built the Kindergarten in order to create more Gems at the cost of depleting the Earth of its resources which would inevitably cause great harm to the planet and its inhabitants.

Feeling compassion and seeing the error in their ways, Rose Quartz rebelled and formed the Crystal Gems, a team of rebels who also wanted to protect the earth, and they started the war for Earth known as The Rebellion. Both sides fought valiantly against each other, but on the battle that took place in the Gem Battlefield the Crystal Gems finally won the war, which drove the remaining Homeworld Gems to retreat back to Homeworld, including Jasper. Many Gems were destroyed, reducing the original group of Crystal Gems (who originated on Homeworld) to Rose Quartz, Garnet, and Pearl.

The first member of the Homeworld Gems to be seen many years after the war was Lapis Lazuli, who had been trapped for an unknown number of years inside a mirror before Steven freed her. He healed her and she returned to Homeworld, only to regret it soon after as Homeworld had advanced so much in the time that she was trapped in the mirror and had found herself out of place.

The second member of the Homeworld Gems to be seen was Peridot, who repaired the Homeworld warp at the Galaxy Warp. She was to check on the current status of the Kindergarten, but left after finding a Crying Breakfast Friends! sticker, which made her think the site was compromised.

She returned in "Marble Madness", where she tried to check on the Kindergarten again before Steven distracted her, which prompted her to attempt to kill him. However, the remaining Crystal Gems intervened and destroyed the power source of Facet Five, which made Peridot tell them that she would report what had happened.

Lapis was seen again in "The Message", this time using a wailing stone in homeworld to relay a message to Steven and the Crystal Gems of an approaching threat coming to Earth. Unbeknownst to them that Lapis had become the informant of the threat.

During the events of "The Return", Peridot brought with her two homeworld Gems: her escort Jasper and her informant Lapis Lazuli, traveling to Earth on the Gem Warship. Jasper helped Peridot defeat the Crystal Gems and take them back to the Homeworld. However, their plans were foiled when the Crystal Gems managed to fight back and defeat them, crashing their Warship in the process and stranding Peridot somewhere on Earth after she escaped on an escape pod. In one last ditch effort to defeat them, Jasper fused with Lapis to become Malachite, a monstrous fusion who sealed herself in the ocean by Lapis' will.

Peridot's primary mission for coming to Earth was seen on "Keeping it Together". She had, on various occasions throughout her appearances, stated on checking up on something called "the cluster". In the aforementioned episode, The Cluster is revealed to be the result of an experiment done by the Homeworld Gems on fusion. The homeworld Gems had taken the shards of fallen Crystal Gems during the war and experimenting on them, forcibly fusing them to create it.

Technology
"Steven, Homeworld is not the way it used to be. Everything here is so advanced! I can't even understand it. There's no way anything on Earth can stand up to it. Please, don't put up a fight, It'll only lead to devastation."

Over the past 5,000 years, the Homeworld Gems have developed advanced technology unfamiliar to the earthbound Crystal Gems.
 * Gem Destabilizer weapons.
 * Limb Enhancers.
 * Robonoids such as Flask Robonoids and Plug Robonoids.
 * Advanced Warships equipped with powerful beam weapons, destabiliser containment fields and escape pods.

Punishment
There appears to be many forms of punishment, one which is "harvesting." Apparently, Peridot thought that would happen to her when she saw the gem bubbles in the Burning Room.

As theorized by Garnet, the Crystal Gem cluster was punishment to the Crystal Gems for The Rebellion.

Trivia

 * Many fans have nicknamed them the "Great Diamond Authority" based on Ronaldo's conspiracy theory created in "Keep Beach City Weird."