Stila Vivid Amethyst is a cool purple with a metallic finish that is permanent and retails for $24.00. In comparison, Pat McGrath Blitz Violet Orchid is a cool purple with a metallic finish that is permanent in palette and retails for $25.00.
Pat McGrath Blitz Violet Orchid is 80% similar — it is more shimmery, darker, cooler.
