Updated For 6.0.3 Warlords of Draenor

Gem Quality

Color Popularity Gem Quality
Red 6 star Brilliant Serpent's Eye
+320 Intellect
Epic
Red/Blue 4 star Mysterious Serpent's Eye
+160 Intellect and +160 PvP Power
Epic
Meta 2 star Tyrannical Primal Diamond
+665 PvP Power and +775 PvP Resilience
Epic
Red 2 star Brilliant Queen's Garnet
+50 Intellect
Epic
Blue 2 star Rigid Serpent's Eye
+480 Hit
Epic
Red 1 star Brilliant Stormjewel
+20 Intellect
Epic
Red/Yellow/Blue 1 star Void Sphere
+4 Resist All
Epic