Natasha Denona Orium (251DC) is a warm gold with a metallic finish that is limited edition and retails for $29.00. In comparison, Pat McGrath Gilty Opulence is a warm gold with a metallic finish that is limited edition and retails for $25.00.
Pat McGrath Gilty Opulence is 85% similar — it is less shimmery, darker, cooler.