prom black dresses Satin Sheath Spaghetti Straps Long With Side Slit, MP859 Turn heads in the Nox Anabel A1374 Prom Long Dress A Line Black Strapless Satin

A woven clutch and gold cuff bracelet add a polished finish

Button cuffs

ASTR the Label String of Pearls minidress, $118, ASTR the Label This cute one-shoulder bachelorette party dress will become your go-to LWD even after you're married

What you should know: Reviewers appreciate that this dress has wider straps, which help to conceal bra straps

The backless effect is favoured by the emerging British designer Aaron Esh who describes it as sensual but not in an obvious way

These Zara trousers give you that same relaxed silhouette in a smarter fabric with a slightly longer length that tips them firmly into formal territory