NARS L'Amour, Toujours L'Amour #11 is a warm taupe with a frost finish that is discontinued and retails for $25.00. In comparison, MAC Put Me to Shame is a warm taupe with a metallic finish that is limited edition and retails for $22.00.
MAC Put Me to Shame is 85% similar — it is more shimmery, lighter, warmer.