Urban Decay O.N.S. is a warm copper with a frost finish that is limited edition and retails for $26.00. In comparison, Wet 'n' Wild Baby It's Rose-gold Outside is a warm copper with a pearl finish that is limited edition and retails for $4.99.
Wet 'n' Wild Baby It's Rose-gold Outside is 90% similar — it is less shimmery, warmer.