MAC Florabundi is a warm lavender with a metallic finish that is limited edition and retails for $19.00. In comparison, Dior Diorstellaire (595) is a cool lavender with a pearl finish that is permanent and retails for $37.00.
Dior Diorstellaire (595) is 80% similar — it is less shimmery, lighter, less pigmented, cooler, glossier.