Updated For 6.0.2 Warlords of Draenor

Gem Quality

Color Popularity Gem Quality
Yellow 6 star Smooth Serpent's Eye
+480 Critical Strike
Epic
Red/Yellow 1 star Potent Fire Opal
+5 Intellect and +4 Critical Strike
Epic
Red/Yellow/Blue 1 star Nightmare Tear
+0 All Stats
Epic
Yellow 1 star Fractured Serpent's Eye
+480 Mastery
Epic
Yellow 1 star Smooth King's Amber
+40 Critical Strike
Epic
Yellow 1 star Quick Serpent's Eye
+480 Haste
Epic
Yellow 1 star Smooth Lionseye
+20 Critical Strike
Epic
Yellow 1 star Smooth Lightstone
+100 Critical Strike
Epic