Natasha Denona Cosmo (109K) is a warm gold with a metallic finish that is permanent in palette and. In comparison, Natasha Denona Orium (251DC) is a warm gold with a metallic finish that is limited edition and retails for $29.00.
Natasha Denona Orium (251DC) is 80% similar — it is more shimmery, lighter, brighter, warmer.