One day Black Diamond went into a human town to see what they had, while purchasing gems to sweat on later she met a rather interesting fellow in a back alley. And that, as they say, is that. Crystal Meth is a gem that really... isn't supposed to work. None of the gems really know how she's possible. But she is. Her weapon is a Schwarzlose machine gun. Despite being full of holes and lacking teeth, she's a very sweet gem and a nice addition to the court of Black and Red. She works as a bit of a doctor, taking care of any cracked gems.