Updated For 5.4 Mists of Pandaria

Gem Quality

Color Popularity Gem Quality Auction Price
Red/Yellow 6 star Deadly Lava Coral
+25 Agility and +25 Critical Strike
Epic
Red/Yellow 4 star Stalwart Fire Opal
+5 Parry and +4 Dodge
Epic
Red/Yellow 4 star Deft Lava Coral
+25 Agility and +25 Haste
Epic
Red/Yellow 2 star Lucent Lava Coral
+25 Agility and +25 PvP Resilience
Epic