Ametrine

original description: A literal permafusion of an Amethyst and Citrine used in the Fusion Experiments and ultimately creating a new breed of gem. She is snarky and takes nothing from the lower class, avoiding all questions pointed at her gem and how it came to be. She can't remember being two gems nor do they coexist anymore.

original designer: youngestdove on DeviantART

new description: with planets scarce to sap up for new gem warriors, sometimes gems are hastily injected very close to each other, bringing up the percentage of accidental fusion down to the actual stone as they incubate underground

that is ametrine in a nutshell