In her corrupted form, she possessed a bulky body that was colored varying icy shades of blue. Larimar also possessed two, very large arms with four spiky fingers each and two short legs. Her head was carved into five sharp protrusions. She had two dark, hexagonal eyes and a gaping, dark mouth lined with sharp teeth. She was slightly taller than Garnet.
Uncorrupted
In her normal, uncorrupted state, she has a bright cyan complexion, as well as a prism-shaped head with three spikes on top. Her eyes always appear to be closed, giving her a permanently cheerful expression. She also has claws, instead of normal fingers (possibly to assist her in her pre-corruption duty as an ice sculptor). She wears a blue shirt with elbow-length sleeves as well as puffy dark blue shorts and a pair of blue knee-length boots with dark blue spots on them. She also wears a light blue scarf. She is also very small in size (hence her name "Little" Larimar). Her upper lip is jagged, resembling the teeth of her corrupted form. Her appearance, according to her concept art, still remains "frozen" from corruption, which may explain her headshape and sharp claws, however it is unconfirmed if this is truly the case.
Personality
Larimar is a kind-hearted Gem, who wishes to make others happy. Her misunderstandings of how Earth's society functions lead her to get confused over simple things, such as screams being sounds of joy. She also mentioned to Steven that screams are her favorite sound on Earth, which worried him. Despite this, it is shown that Larimar very much enjoys seeing children laugh, and wishes to make it her purpose on Earth to help them do so by giving out prizes at Beach City Funland.
Abilities
Larimar possesses standard Gem abilities: bubbling, shapeshifting, fusion, regeneration, agelessness, gravity shifting, photokinesis, gem storage, and superhuman strength/durability.
Natural Abilities
Gem Storage: In "Together Forever", Larimar summoned a notebook and pencil from her gemstone.
Unique Abilities
Sharp Claws:
Larimar's sharp claws.
Larimar possesses the ability to carve out snow cones out of the ice pillars that Snowflake Obsidian forms. She also used to carve out ice sculptures for the Diamonds back on Homeworld.
History
Thousands of Years Ago
On Homeworld, Larimar constructed ice sculptures and statues for the Diamonds. Eventually, Larimar defected from Homeworld, which made her become a member of the Crystal Gems. Later on, she fought in the Rebellion on Earth until its very end but was unable to escape the Diamonds' Corrupting Light, mutating into a Corrupted Gem upon exposure to the light. In her corrupted state, she found refuge in an ice cavern.
The Crystal Gems are shown fighting Larimar in the large cavern inside a snowy mountain. She's shown to be preventing them from acquiring a powerful, elemental artifact called the Shooting Star. After her arm falls off, Garnet deals the final blow on her, thus, defeating Larimar. Pearlbubbles her Gem and transports it back to the Burning Room. Her Gem is seen again when Garnet bubbles Steven to The Burning Room and is later seen again when Steven bubbles Nephrite's gemstone to the room along with the Chaaaaps.
She appears in "Guidance" where she and Snowflake Obsidian both have jobs as snowcone saleswomen. During the episode, she exclaims how she loves the excited screams of people, and Steven tasks her with running the roller coaster due to this interest, which quickly goes awry. In the final moments of the episode, she is shown to have taken a liking to giving stuffed toys to children, as their laughter gives her as much joy as people's screams.
In "Change Your Mind", a stout blue Gem appears talking to Snowflake Obsidian. It was stated by Rebecca Sugar in the DVD documentary for Steven Universe: The Movie that this Gem was originally going to be Larimar's uncorrupted form, whose design was replaced in favor of the current one.
Her boots resemble the patterning on a real larimar gemstone.
Larimar is the second Gem shown to have a non-native English accent, with the Swedish voice actress Michelle Maryk.
Larimar and Orange Spodumene are the first Gems shown to have only four fingers on each hand instead of five.
She has an elongated, hexagonal gemstone colored a bright blue which is located on her forehead. While she was corrupted, her gemstone was inside her head and it was chipped on the 6th facet.
