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
Yellow 6 star Smooth Serpent's Eye
+480 Critical Strike
Epic
Red/Yellow/Blue 2 star Void Sphere
+4 Resist All
Epic
Yellow 2 star Quick Serpent's Eye
+480 Haste
Epic
Yellow/Blue 1 star Steady Chrysoprase
+6 Stamina and +5 PvP Resilience
Epic
Yellow 1 star Smooth Lightstone
+50 Critical Strike
Epic
Yellow/Blue 1 star Radiant Chrysoprase
+5 Critical Strike and +5 PvP Power
Epic