Chimera's Eye

Chimera's Eyes are uncut gems primarily used to produce socketable gems that may only be used by that jeweler.

Source
Chimera's Eye gems may be purchased from in Stormwind City or  in Orgrimmar at a cost of  each. These tokens are only acquirable by high level jewelcrafters through jewelcrafting daily quests.

Chimera's Eye gems are sometimes found in Fire Prisms, made through Illustrious Master Jewelcrafting (with a 20 hour cooldown); similar to WotLK's Icy Prism.