Crystal Diamond was the Great Wizarding Tournament Champion about a decade ago. She won before Blu Cookie. She is skilled at the arts of Love and Minerals. This is quite a powerful combination. Crystal's other occupation is a fashion designer. Her designs are solid. Her teacher Colette states that her designs are so original! Crystal is known for her balance. Being Mineral, you can't be quick but she is. She has far more speed that her teacher Darby. But when she challenges him, she always loses. Crystal is the helper of Colette. She wishes to teach but Mineral prevents that. She has a son named Nicholas Rumble, a user of Dark and Mineral arts.