Opal

Opal is a character who first appeared in "Giant Woman" and is created when Amethyst and Pearl fuse together.

Appearance
Opal is a tall gem, only formed when Amethyst and Pearl fuse together. She has long white hair, pale violet skin, bright blue eyes, and four arms. She is wearing mostly Pearl's clothes, and has two gems, (both Opal) on her forehead and chest. She also has her own weapon, a bow that is created when she fuses Amethyst's and Pearl's weapons together.

Personality
Opal retains a separate personality from the two gems who form her as opposed to a shared mind, her mind and subsequent personality, is also a fusion. Her personality is mild-mannered and a fusion of Amethyst's rash, but powerful and Pearl's graceful, but perfectionist personalities. She appears to be more laid-back with Steven's desire to have fun, as she sang Steven's song back to him.

Abilities
By synchronizing together via dancing, Amethyst and Pearl can fuse to become a more powerful gem, an "amalgam of [their] combined magical and physical attributes fused into a single entity.", this forming Opal. However, when a disagreement between the two happens (such as an argument between the two), Opal is then separated into Amethyst and Pearl. Opal is capable of working her four arms in tandem as well as performing enhanced acrobatics while controlling both gems weapons. She is also capable of combining the two gem's weapons into a powerful bow with gem powered arrows.

Trivia

 * She is the first fused Gem to be featured in an episode.
 * The "dance" the two must perform to fuse is a reference to the Fusion Dance in DragonBall Z, even to the part where the two fusees must be willing to bond when needed.
 * The locations of her two gems are the same as Amethyst's and Pearl's gems.
 * Opal closely resembles Shiva, a Hindu deity, featuring four arms, long hair and a gem lodged in their forehead.
 * Opal's appearance consists more of Pearl's physical appearance and features