Synthetic Diamond

Synthetic Diamond is unique in the she was created and raised by the other three Diamonds. She's been molded and trained to be perfect, in their image. Though she is a Diamond with authority over all other gems, she is very much subject to the other three Diamonds, and not considered an equal. If she makes mistakes, she is put through harsher and harsher "training." As such, she is much crueler towards the gems under her, as it is a way for her to express the control that she does not have over herself.