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
Yellow/Blue 3 star Jagged Chrysoprase
+10 Critical Strike and +6 Stamina
Epic
Red/Blue 3 star Sovereign Tanzanite
+5 Strength and +6 Stamina
Epic
Yellow/Blue 3 star Steady Chrysoprase
+6 Stamina and +5 PvP Resilience
Epic