Updated For 5.4 Mists of Pandaria

Gem Quality

Color Popularity Gem Quality Auction Price
Red/Blue 6 star Veiled Shadow Spinel
+25 Intellect and +25 Hit
Epic
Red/Yellow/Blue 6 star Nightmare Tear
+10 All Stats
Epic
Red/Yellow/Blue 3 star Void Sphere
+4 Resist All
Epic
Red/Blue 3 star Glinting Tanzanite
+5 Agility and +4 Hit
Epic
Blue 3 star Solid Serpent's Eye
+480 Stamina
Epic