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/Blue 4 star Regal Chrysoprase
+5 Dodge and +6 Stamina
Epic
Red/Yellow/Blue 4 star Void Sphere
+4 Resist All
Epic
Yellow/Blue 2 star Infused Elven Peridot
+25 PvP Power and +25 Mastery
Epic