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 Mysterious Imperial Amethyst
+80 Intellect and +80 PvP Power
Rare
Red/Blue 1 star Perfect Purified Roguestone
+80 Intellect and +160 Spirit
Rare
Red/Blue 1 star Timeless Imperial Amethyst
+80 Intellect and +120 Stamina
Rare
Red/Blue 1 star Perfect Mysterious Roguestone
+80 Intellect and +80 PvP Power
Rare
Red/Blue 1 star Purified Roguestone
+60 Intellect and +120 Spirit
Uncommon
Red/Blue 1 star Glinting Imperial Amethyst
+80 Agility and +160 Hit
Rare
Red/Blue 1 star Assassin's Imperial Amethyst
+80 Agility and +80 PvP Power
Rare
Red/Blue 1 star Retaliating Imperial Amethyst
+160 Parry and +160 Hit
Rare
Red/Blue 1 star Perfect Assassin's Roguestone
+80 Agility and +80 PvP Power
Rare
Red/Blue 1 star Accurate Imperial Amethyst
+160 Expertise and +160 Hit
Rare
Red/Blue 1 star Shifting Imperial Amethyst
+80 Agility and +120 Stamina
Rare
Red/Blue 1 star Mysterious Serpent's Eye
+160 Intellect and +160 PvP Power
Epic
Red/Yellow/Blue 1 star Prismatic Sphere
+3 Resist All
Rare
Red/Blue 1 star Veiled Roguestone
+60 Intellect and +120 Hit
Uncommon
Red/Blue 1 star Perfect Timeless Roguestone
+80 Intellect and +120 Stamina
Rare
Red/Blue 1 star Veiled Imperial Amethyst
+80 Intellect and +160 Hit
Rare
Red/Yellow/Blue 1 star Nightmare Tear
+0 All Stats
Epic
Red/Blue 1 star Timeless Roguestone
+60 Intellect and +90 Stamina
Uncommon
Red/Blue 1 star Mysterious Roguestone
+60 Intellect and +60 PvP Power
Uncommon
Red/Blue 1 star Assassin's Roguestone
+60 Agility and +60 PvP Power
Uncommon
Red/Blue 1 star Tense Imperial Amethyst
+80 Strength and +80 PvP Power
Rare