Natasha Denona Copper Stone (188M) is a warm brown with a metallic finish that is permanent in palette and retails for $29.00. In comparison, Natasha Denona Rustic (214M) is a warm brown with a metallic finish that is permanent in palette and retails for $29.00.
Natasha Denona Rustic (214M) is 80% similar — it is less shimmery, warmer.