Givenchy It-Girl Purple is a cool pink with a satin finish that is permanent and retails for $44.00. In comparison, Marc Jacobs Beauty Lush & Libido (500) is a cool pink with a luminous finish that is permanent and retails for $42.00.
Marc Jacobs Beauty Lush & Libido (500) is 85% similar — it is more shimmery, darker.