Marc Jacobs Beauty Blacquer (Berry) is a warm plum with a cream finish that is permanent and retails for $24.00. In comparison, Sephora Eggplant Matte is a warm purple with a matte finish that is permanent and retails for $13.00.
Sephora Eggplant Matte is 85% similar — it is darker, cooler, less glossy.