Updated For 5.4 Mists of Pandaria

Gem Quality

Color Popularity Gem Quality Auction Price
Blue 6 star Rigid Serpent's Eye
+480 Hit
Epic
Red/Blue 4 star Mysterious Serpent's Eye
+160 Intellect and +160 PvP Power
Epic
Red/Blue 3 star Purified Tanzanite
+5 Intellect and +4 Spirit
Epic
Red/Yellow/Blue 3 star Nightmare Tear
+10 All Stats
Epic
Blue 2 star Solid Serpent's Eye
+480 Stamina
Epic
Red/Blue 2 star Glinting Tanzanite
+5 Agility and +4 Hit
Epic