Updated For 6.0.2 Warlords of Draenor

Gem Quality

Color Popularity Gem Quality
Red 6 star Brilliant Primordial Ruby
+160 Intellect
Rare
Red/Blue 1 star Veiled Imperial Amethyst
+80 Intellect and +160 Hit
Rare
Red/Yellow 1 star Reckless Vermilion Onyx
+80 Intellect and +160 Haste
Rare
Red/Blue 1 star Timeless Imperial Amethyst
+80 Intellect and +120 Stamina
Rare
Red 1 star Precise Primordial Ruby
+320 Expertise
Rare
Red/Yellow/Blue 1 star Nightmare Tear
+0 All Stats
Epic
Red/Yellow 1 star Potent Vermilion Onyx
+80 Intellect and +160 Critical Strike
Rare
Red/Blue 1 star Purified Imperial Amethyst
+80 Intellect and +160 Spirit
Rare
Red 1 star Brilliant Inferno Ruby
+40 Intellect
Rare