Giorgio Armani Cold Copper (09) is a warm brown with a metallic finish that is discontinued and retails for $39.00. In comparison, Natasha Denona Satin Skin (75P) is a warm brown with a pearl finish that is permanent in palette and retails for $29.00.
Natasha Denona Satin Skin (75P) is 90% similar — it is less shimmery, darker, cooler.