L'Oreal Bronzed Taupe is a warm taupe with a metallic finish that is permanent and retails for $7.99. In comparison, Charlotte Tilbury Smokey Quartz is a warm taupe with a metallic finish that is limited edition and retails for $34.00.
Charlotte Tilbury Smokey Quartz is 80% similar — it is less shimmery, lighter, cooler.