Flint's best friend Diamond. Diamond is hard as steel. Very tough. Acorn admires her. Although strong, she settles with the weak. She's in Tape Measure's friend group. Wait I've been calling it that the entire time haven't I. Well, Diamond was the one who named the group. The group's name is The Gemstones. Although she is strong, like how all people should be, she's humble and doesn't brag about it.