MAC I'd Give My All is a warm taupe with a frost finish that is limited edition and retails for $17.00. In comparison, NARS L'Amour, Toujours L'Amour #11 is a warm taupe with a frost finish that is discontinued and retails for $25.00.
NARS L'Amour, Toujours L'Amour #11 is 95% similar — it is darker.