Coloured Raine Opulence is a cool blue with a glitter finish that is limited edition and retails for $6.99. In comparison, Natasha Denona Electrick (364M) is a cool blue with a metallic finish that is limited edition and retails for $29.00.
Natasha Denona Electrick (364M) is 90% similar — it is less shimmery, darker, warmer.