The Diamont were a species of silicon-based rock-people who hailed from Mondreus. For some reason they have disappeared from the galaxy. They appear to be able to naturally transform into rocky spheres called Dialanches, which they use to bound around quickly as well as defend against their foes. While their diet is unknown, it can be easily presumed to be some form of mineral consumption due to their silicon-based physiology. With this in mind, it's extremely unlikely that they could consume living food to sustain themselves Spire is believed to be the last of their race.