NYX Liquid Gold is a warm copper with a frost finish that is permanent and retails for $6.00. In comparison, NARS L'Amour, Toujours L'Amour #6 is a warm copper with a frost finish that is discontinued and retails for $25.00.
NARS L'Amour, Toujours L'Amour #6 is 95% similar — it is darker, more muted.