Diamond is the choice of disc for beginners, children and players with moderate arm speed. It is only produced in weights between 145g-159g, which makes it easy to throw and control. It has an understable flight path with good glide and slight fade.
The Jade is designed to be a little more stable for players who loved the Diamond, but as their game developed needed a disc that could handle a bit more speed. It sits very comfortably in the hand, with a good tactile feel to the plastic and it holds the angles well. You CAN turn it over but unless you really force it, it fades back at the end. A very nice, reliable, and moderately stable disc.
Pearl is a midrange with a small grip, low weight starting at 150g and a neutral flight path. It is part of the Easy-to-use line and is the perfect midrange for beginners, children and players with moderate arm speed.