Natasha Denona Rust (249M) is a warm copper with a metallic finish that is limited edition and retails for $29.00. In comparison, Natasha Denona Fuse (257M) is a warm gold with a metallic finish that is limited edition and retails for $29.00.
Natasha Denona Fuse (257M) is 90% similar — it is lighter, warmer.