Updated For 6.0.2 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 Purified Roguestone
+60 Intellect and +120 Spirit
Uncommon
Red/Blue 1 star Mysterious Imperial Amethyst
+80 Intellect and +80 PvP Power
Rare
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/Yellow/Blue 1 star Prismatic Sphere
+3 Resist All
Rare
Red/Yellow/Blue 1 star Void Sphere
+4 Resist All
Epic
Red/Blue 1 star Guardian's Imperial Amethyst
+160 Expertise and +120 Stamina
Rare
Red/Blue 1 star Etched Tanzanite
+5 Strength and +4 Hit
Epic
Red/Blue 1 star Perfect Timeless Roguestone
+80 Intellect and +120 Stamina
Rare