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/Yellow/Blue 2 star Nightmare Tear
+10 All Stats
Epic
Yellow/Blue 1 star Steady Chrysoprase
+6 Stamina and +5 PvP Resilience
Epic
Yellow/Blue 1 star Radiant Elven Peridot
+25 Critical Strike and +25 PvP Power
Epic
Blue 1 star Rigid Chimera's Eye
+67 Hit
Epic