A new arrival on the gemstone scene, green amethyst is a real attention getter. Starting its life as a purple amethyst, the gem is basked in heat until it turns a delicate shade of icy green. Green amethyst looks great in either white or yellow gold, as a ring, earrings or pendant. Green amethyst is an appropriate choice as the birthstone of February if you prefer it to its purple cousin. It also goes well with other lighter colored stones like lemon quartz and aquamarine to create a unique keepsake ring or pendant.