Updated For 6.0.3 Warlords of Draenor

Gem Quality

Color Popularity Gem Quality
Red/Blue 6 star Purified Imperial Amethyst
+80 Intellect and +160 Spirit
Rare
Blue 3 star Sparkling River's Heart
+320 Spirit
Rare
Yellow/Blue 1 star Radiant Wild Jade
+160 Critical Strike and +80 PvP Power
Rare
Yellow/Blue 1 star Misty Wild Jade
+160 Spirit and +160 Critical Strike
Rare