Updated For 5.4 Mists of Pandaria

Gem Quality

Color Popularity Gem Quality Auction Price
Yellow 6 star Smooth Serpent's Eye
+480 Critical Strike
Epic
Red/Yellow 3 star Willful Serpent's Eye
+160 Intellect and +160 PvP Resilience
Epic
Yellow 1 star Quick Serpent's Eye
+480 Haste
Epic
Yellow 1 star Quick Lightstone
+50 Haste
Epic
Red/Yellow/Blue 1 star Nightmare Tear
+10 All Stats
Epic