Updated For 6.0.2 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
Red/Blue 1 star Etched Tanzanite
+5 Strength and +4 Hit
Epic
Red/Blue 1 star Glinting Tanzanite
+5 Agility and +4 Hit
Epic
Red/Blue 1 star Timeless Tanzanite
+5 Intellect and +6 Stamina
Epic
Red/Blue 1 star Sovereign Amethyst
+5 Strength and +6 Stamina
Epic
Red/Blue 1 star Glinting Tanzanite
+5 Agility and +4 Hit
Epic