MAC Style Cast is a warm orange with a pearl finish that is limited edition and retails for $24.00. In comparison, Kevyn Aucoin Starlight (Sahara) is a warm peach with a pearl finish that is permanent in palette and retails for $44.00.
Kevyn Aucoin Starlight (Sahara) is 90% similar — it is less shimmery, lighter, cooler.