A graphic was shown at the [[Crafting Sanctuary]] panel at Blizzcon 2010 that displayed six types of gems: [[Ruby|Rubies]], [[Sapphire]]s, [[Emerald]]s, [[Topaz]]es, [[Amethyst]]s and [[Diamond]]s.

[[Skull]] gems were not shown, and they have not been seen in the game. Skulls, or other types of gems, may be in the game and not revealed yet, or might be added in expansion packs.