The third entry in the gemstone OC series, Ruby is a hotheaded klutz. He can't seem to control himself all the time, especially when it comes to the sparks he can generate. He means no harm, but he's still very prone to snap if something goes wrong, even at his closest friends, and even if it was his own fault. Amber has been trying to get him into meditation for some time now.

Ruby was born with the ability to create and manipulate sparks. As a result, he can do many things, such as start fires, light fuses, and jumpstart machines.