YSL Showstopping Rose (163) is a cool pink with a luminous finish that is permanent and retails for $38.00. In comparison, Gucci Beauty Wife vs. Secretary (602) is a warm lavender with a natural finish that is permanent and retails for $42.00.
Gucci Beauty Wife vs. Secretary (602) is 80% similar — it is more shimmery, darker, less pigmented, cooler.