MAC Autumn Russet is a warm copper with a pearl finish that is permanent and retails for $21.00. In comparison, NABLA Cosmetics Champagne Supernova is a warm copper with a sparkle finish that is permanent and retails for $15.00.
NABLA Cosmetics Champagne Supernova is 80% similar — it is less shimmery, lighter, less pigmented, warmer.