MAC Gagging for Gifts is a cool taupe with a matte finish that is limited edition and retails for $17.00. In comparison, NARS Quai des Brumes (Right) is a cool taupe with a matte finish that is discontinued and retails for $25.00.
NARS Quai des Brumes (Right) is 85% similar — it is more shimmery, lighter, warmer.