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 2 star Willful Serpent's Eye
+160 Intellect and +160 PvP Resilience
Epic
Red/Yellow 2 star Reckless Fire Opal
+5 Intellect and +4 Haste
Epic
Red/Yellow 2 star Reckless Fire Opal
+5 Intellect and +4 Haste
Epic