Gucci Beauty Louisa Red (506) is a warm plum with a natural finish that is permanent and retails for $42.00. In comparison, Chanel Camelia Pourpre (637) is a warm plum with a luminous finish that is limited edition and retails for $40.00.
Chanel Camelia Pourpre (637) is 80% similar — it is more shimmery, darker.
