Updated For 6.0.3 Warlords of Draenor

Gem Quality

Color Popularity Gem Quality
Red/Blue 6 star Etched Imperial Amethyst
+80 Strength and +160 Hit
Rare
Red/Blue 3 star Defender's Imperial Amethyst
+160 Parry and +120 Stamina
Rare
Red/Blue 1 star Perfect Defender's Roguestone
+160 Parry and +120 Stamina
Rare
Red/Blue 1 star Perfect Etched Roguestone
+80 Strength and +160 Hit
Rare
Red/Yellow/Blue 1 star Nightmare Tear
+0 All Stats
Epic
Red/Blue 1 star Retaliating Imperial Amethyst
+160 Parry and +160 Hit
Rare