Updated For 6.0.2 Warlords of Draenor

Gem Quality

Color Popularity Gem Quality
Red/Blue 6 star Mysterious Serpent's Eye
+160 Intellect and +160 PvP Power
Epic
Blue 3 star Solid Serpent's Eye
+480 Stamina
Epic
Red/Yellow/Blue 2 star Nightmare Tear
+0 All Stats
Epic
Blue 2 star Stormy Majestic Zircon
+20 PvP Power
Epic
Yellow/Blue 1 star Radiant Chrysoprase
+5 Critical Strike and +5 PvP Power
Epic
Blue 1 star Stormy Deepholm Iolite
+100 PvP Power
Epic
Red/Blue 1 star Timeless Tanzanite
+5 Intellect and +6 Stamina
Epic
Yellow/Blue 1 star Vivid Elven Peridot
+25 PvP Power and +25 PvP Resilience
Epic