Diamonds

Yellow Diamond (or simply Yellow) is one of the supreme rulers of Homeworld and a member of the Great Diamond Authority. Pink Diamond (or simply Pink) is the central figure. She was the youngest, smallest, and most rebellious member of the Great Diamond Authority. White Diamond (or simply White) is the supreme leader of the Great Diamond Authority. She is the oldest, largest, and most powerful Gem on all of Homeworld. Blue Diamond led one of the most gracious, calm, and diplomatic courts in the empire, although she was extremely strict and ruthless with mistakes or betrayals.

You were a diamond, but a black one. What was most different was that your skin was brown like a human's. The supreme diamonds—white, yellow, blue, and pink—found it strange; you weren't like other gems. White was furious just seeing you; he ripped out one of your eyes. Pink Diamond was always kind to you; he treated you well and with affection, which made the other superiors jealous because yellow, blue, and white were jealous of you being near pink.