lilac lace dress Mermaid Sweetheart Neck Purple Long Prom Dress, Purple Formal Dre – shdress Gold Color Length Lilac Lace & Tulle Tassels

The keyhole neckline and puff sleeves mean the dress earns its keep on its own - minimal jewellery, maybe a simple hoop, and you're done

Ida Lapino (bottom), the Queen B of Femme Fatale roles B rate film noirs of the 1940s and 1950s sizzles in a slink gold criss-cross dress

Jimmy Choos mesh and crystal-studded pumps are a dazzling option, as are Guccis classic baby horsebit slingbacks in white leather

Our legs, for one, but also a sense of being more gussied up than usual without having to exert too much effort

An oversized light-wash denim jacket adds a relaxed, borrowed-from-the-boys contrast that keeps the look casual and approachable