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
Blue 1 star Solid Serpent's Eye
+480 Stamina
Epic
Red/Yellow/Blue 1 star Nightmare Tear
+10 All Stats
Epic
Blue 1 star Stormy Deepholm Iolite
+50 PvP Power
Epic
Red/Yellow/Blue 1 star Void Sphere
+4 Resist All
Epic
Yellow/Blue 1 star Regal Chrysoprase
+5 Dodge and +6 Stamina
Epic
Yellow/Blue 1 star Infused Elven Peridot
+25 PvP Power and +25 Mastery
Epic
Blue 1 star Rigid Serpent's Eye
+480 Hit
Epic