ColourPop Full Metal is a neutral gray with a metallic finish that is discontinued and retails for $4.50. In comparison, NARS L'Amour, Toujours L'Amour #8 is a warm gray with a metallic finish that is discontinued and retails for $25.00.
NARS L'Amour, Toujours L'Amour #8 is 90% similar — it is more muted, warmer.