Amethyst

A homeworld quartz soldier, she is ruled over by blue diamond.

She is a strong, well built gem and soldier, who hopes one day to be sent to earth to finally eradicate the last of the crystal gems. She is not very strong-willed however, and can very easily be manipulated or deceived....

(Eventually becomes friends with the crystal gems, but does not join them. She simply turns the other cheek and pretends like they dont exist, lying to her diamond and saying they are all shattered. She is very pursuasive about keeping homeworld off of earth, however.)