The Peculiars ||Human AU

Peridot is a 17 y/o who is very intelligent and secretive. Peridot is a Diamond but hides the fact that he's and currently goes to a school owned by his aunt (YD) called Diamond Authority.

Lapis is turning 18 and very known at her school. She has Hydrokinesis, which only a few people in the world have. She knows Peridot is hiding something, and tries to figure it out, will she find out?