(sorry if information is not entirely accurate, characters will probably be at least a little OOC. I only own Rainbow Moonstone and the fanfiction) Rainbow Moonstone was made in Blue Diamond's old kindergarten. She amazed everyone with her speed, strength, and powers. She was the first gem of her kind, and a beautiful one at that. Blue Diamond quickly grew fond of her for her nice and calm personality and they became friends. As Rainbow Moonstone climbed up the ranks, she became the most powerful gem in history, but luckily she was completely loyal to Blue Diamond. At some point Blue Diamond made Rainbow Moonstone her personal guard and she stayed by Blue's side, much like Blue Pearl. She still went on missions though, but only ones Blue Diamond knew she wouldn't get hurt, for she is very protective of her. It took quite a while for Blue Diamond to let her go on missions. Rainbow spends most of her time guarding Blue Diamond and talking to her few friends.