Updated For 6.0.3 Warlords of Draenor

Gem Quality

Color Popularity Gem Quality
Red/Blue 6 star Purified Imperial Amethyst
+80 Intellect and +160 Spirit
Rare
Red/Blue 1 star Perfect Purified Roguestone
+80 Intellect and +160 Spirit
Rare
Red/Blue 1 star Mysterious Imperial Amethyst
+80 Intellect and +80 PvP Power
Rare
Red/Blue 1 star Purified Roguestone
+60 Intellect and +120 Spirit
Uncommon
Red/Blue 1 star Timeless Imperial Amethyst
+80 Intellect and +120 Stamina
Rare
Red/Blue 1 star Veiled Imperial Amethyst
+80 Intellect and +160 Hit
Rare
Red/Blue 1 star Perfect Mysterious Roguestone
+80 Intellect and +80 PvP Power
Rare
Red/Blue 1 star Mysterious Serpent's Eye
+160 Intellect and +160 PvP Power
Epic
Red/Yellow/Blue 1 star Nightmare Tear
+0 All Stats
Epic
Red/Blue 1 star Purified Demonseye
+20 Intellect and +40 Spirit
Rare
Red/Blue 1 star Mysterious Roguestone
+60 Intellect and +60 PvP Power
Uncommon
Red/Blue 1 star Timeless Roguestone
+60 Intellect and +90 Stamina
Uncommon
Red/Blue 1 star Timeless Nightstone
+15 Intellect and +23 Stamina
Uncommon
Red/Blue 1 star Assassin's Imperial Amethyst
+80 Agility and +80 PvP Power
Rare
Red/Blue 1 star Perfect Veiled Shadow Crystal
+7 Intellect and +14 Hit
Uncommon
Red/Blue 1 star Perfect Veiled Roguestone
+80 Intellect and +160 Hit
Rare
Red/Blue 1 star Guardian's Imperial Amethyst
+160 Expertise and +120 Stamina
Rare
Red/Yellow/Blue 1 star Void Sphere
+4 Resist All
Epic
Red/Blue 1 star Retaliating Imperial Amethyst
+160 Parry and +160 Hit
Rare
Red/Blue 1 star Veiled Roguestone
+60 Intellect and +120 Hit
Uncommon
Red/Blue 1 star Glinting Imperial Amethyst
+80 Agility and +160 Hit
Rare