Updated For 5.4 Mists of Pandaria

Gem Quality

Color Popularity Gem Quality Auction Price
Red/Blue 6 star Assassin's Serpent's Eye
+160 Agility and +160 PvP Power
Epic
Red/Yellow/Blue 1 star Nightmare Tear
+10 All Stats
Epic
Blue 1 star Stormy Majestic Zircon
+20 PvP Power
Epic
Blue 1 star Stormy Deepholm Iolite
+50 PvP Power
Epic
Yellow/Blue 1 star Steady Chrysoprase
+5 PvP Resilience and +6 Stamina
Epic
Blue 1 star Solid Serpent's Eye
+480 Stamina
Epic
Yellow/Blue 1 star Jagged Chrysoprase
+6 Stamina and +5 Critical Strike
Epic