Updated For 6.0.3 Warlords of Draenor

Gem Quality

Color Popularity Gem Quality
Red/Yellow 6 star Reckless Vermilion Onyx
+80 Intellect and +160 Haste
Rare
Red/Yellow 4 star Potent Vermilion Onyx
+80 Intellect and +160 Critical Strike
Rare
Yellow/Blue 2 star Misty Wild Jade
+160 Spirit and +160 Critical Strike
Rare
Yellow/Blue 2 star Radiant Wild Jade
+160 Critical Strike and +80 PvP Power
Rare