Updated For 6.0.3 Warlords of Draenor

Gem Quality

Color Popularity Gem Quality
Red 6 star Delicate Serpent's Eye
+320 Agility
Epic
Meta 6 star Tyrannical Primal Diamond
+665 PvP Power and +775 PvP Resilience
Epic
Yellow 2 star Quick Serpent's Eye
+480 Haste
Epic
Red/Yellow 2 star Lucent Lava Coral
+25 Agility and +25 PvP Resilience
Epic