Updated For 6.0.3 Warlords of Draenor

Gem Quality

Color Popularity Gem Quality
Red/Blue 6 star Assassin's Serpent's Eye
+160 Agility and +160 PvP Power
Epic
Red/Yellow/Blue 2 star Nightmare Tear
+0 All Stats
Epic
Blue 1 star Rigid Stormjewel
+40 Hit
Epic
Blue 1 star Rigid Serpent's Eye
+480 Hit
Epic