ColourPop So Fine (Stone Cold Fox) is a warm pink with a metallic finish that is limited edition and retails for $4.50. In comparison, MAC A Medley of Mauves #1 is a cool pink with a metallic finish that is permanent in palette and retails for $21.00.
MAC A Medley of Mauves #1 is 90% similar — it is less shimmery, darker, cooler.