Updated For 6.0.3 Warlords of Draenor

Gem Quality

Color Popularity Gem Quality
Yellow/Blue 6 star Piercing Wild Jade
+160 Critical Strike and +160 Hit
Rare
Blue 2 star Solid River's Heart
+240 Stamina
Rare
Red/Blue 1 star Glinting Imperial Amethyst
+80 Agility and +160 Hit
Rare
Blue 1 star Perfect Solid Lapis Lazuli
+240 Stamina
Rare