"Doc" Ruby

Ruby (nicknamed Doc by Steven) is a Homeworld Gem who made her debut in "Hit the Diamond". She is the leader of the Ruby troops sent by Yellow Diamond to retrieve Jasper. She is currently floating in space after Steven opened the airlock on the Moon Base.

Appearance
Doc's complexion is the same as the Crystal Gem Ruby's in color, but she wears a yellow transparent visor similar to Peridot's and a pair of red shorts, held on by a group pair of black suspenders that have two halves of a yellow diamond on the edges. Her gemstone is located on her chest.

Personality
Doc is assertive and a natural leader, professional in her actions. While the others are often distracted, she stays on task. She is the most competent member of the group along with Eyeball, who is more experienced in Gem history, due to being older than her. She uses strict and commanding language when interacting with the other Rubies, but is very respectful towards Amethyst (who was shape-shifting to appear like Jasper).

Like the other Rubies, Doc is easily fooled by disguises or lies. She also made the error of not including herself in counting the group when she noticed too many Rubies standing about.

Abilities
Ruby possesses standard Gem abilities, bubbling, shapeshifting, fusion, regeneration, agelessness, and superhuman strength/durability.
 * Pyrokinetic Touch: Like the Crystal Gem Ruby, Doc is shown to be able to set things on fire by touching them. This is shown in "Hit the Diamond" when she sets the baseball on fire before throwing it.
 * Photokinesis: In "Back to the Moon", she is shown projecting a red light from her gem as the Gems exit the Roaming Eye. She shares this ability with Garnet, Pearl, Peridot, and Eyeball.


 * Piloting: As shown in "Back to the Moon", she is an expert pilot who is able to fly the Roaming Eye. She shares these skills with Pearl and Peridot.

Fusions

 * When fused with Pearl, Blue Pearl, Yellow Pearl, Ruby, Eyeball, Navy, Army, Leggy, Hand Ruby, Shoulder Ruby, Rhodonite, Sapphire and Padparadscha, they form Sardonyx