Updated For 6.0.2 Warlords of Draenor

Gem Quality

Color Popularity Gem Quality
Red/Blue 6 star Veiled Imperial Amethyst
+80 Intellect and +160 Hit
Rare
Red/Blue 4 star Mysterious Imperial Amethyst
+80 Intellect and +80 PvP Power
Rare
Red/Blue 3 star Mysterious Roguestone
+60 Intellect and +60 PvP Power
Uncommon
Red/Blue 3 star Purified Imperial Amethyst
+80 Intellect and +160 Spirit
Rare
Red/Blue 2 star Perfect Shifting Roguestone
+80 Agility and +120 Stamina
Rare
Red/Blue 2 star Accurate Imperial Amethyst
+160 Expertise and +160 Hit
Rare
Red/Blue 2 star Etched Imperial Amethyst
+80 Strength and +160 Hit
Rare
Red/Blue 2 star Sovereign Imperial Amethyst
+80 Strength and +120 Stamina
Rare
Red/Blue 2 star Veiled Roguestone
+60 Intellect and +120 Hit
Uncommon
Red/Blue 2 star Perfect Veiled Roguestone
+80 Intellect and +160 Hit
Rare
Red/Blue 2 star Glinting Imperial Amethyst
+80 Agility and +160 Hit
Rare
Red/Blue 2 star Retaliating Imperial Amethyst
+160 Parry and +160 Hit
Rare
Red/Yellow/Blue 2 star Nightmare Tear
+0 All Stats
Epic
Red/Blue 2 star Purified Roguestone
+60 Intellect and +120 Spirit
Uncommon
Red/Blue 2 star Perfect Timeless Roguestone
+80 Intellect and +120 Stamina
Rare