Updated For 6.2.3 Warlords of Draenor
Color Popularity Gem Quality
Prismatic 6 star Brilliant Crimson Spinel
+10 Intellect
Epic
Prismatic 3 star Brilliant Serpent's Eye
Epic
Prismatic 3 star Nightmare Tear
Epic
Prismatic 3 star Quick Lionseye
+20 Haste
Epic
Prismatic 3 star Potent Pyrestone
+5 Intellect and +10 Critical Strike
Epic
Prismatic 3 star Smooth Lionseye
+20 Critical Strike
Epic
Prismatic 3 star Smooth Serpent's Eye
Epic
Prismatic 3 star Brilliant Cardinal Ruby
Epic
Prismatic 3 star Glinting Shadowsong Amethyst
+5 Agility and +10 Critical Strike
Epic
Prismatic 3 star Rigid Empyrean Sapphire
+10 Critical Strike
Epic