Charlotte Tilbury Light (2) is a warm gold with a luminous finish that is permanent and retails for $44.00. In comparison, MAC Perfect Topping (Lightness of Being) is a warm gold with a luminous finish that is limited edition and retails for $34.00.
MAC Perfect Topping (Lightness of Being) is 85% similar — it is more shimmery, more pigmented, cooler.