MAC A Glimmer of Gold #4 is a warm taupe with a pearl finish that is permanent in palette and retails for $21.00. In comparison, NARS L'Amour, Toujours L'Amour #3 is a warm taupe with a frost finish that is discontinued and retails for $25.00.
NARS L'Amour, Toujours L'Amour #3 is 90% similar — it is more shimmery.