Updated For 5.4 Mists of Pandaria

Gem Quality

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