Alexandre Vauthier - One-Sleeve Ruffled Organza-Trimmed Wool-Crepe Mini Dress - Black - FR40

Rihanna wore an iteration of Alexandre Vauthier's mini dress to Beyoncé and Jay-Z's Oscars after-party this year - she teamed it with lace-up sandals, but we think it'll look just as glamorous with pumps. It's cut for a contouring fit from black wool-crepe and has a one-sleeve neckline trimmed with voluminous organza ruffles that sway gently as you move. Let the maximalist design speak for itself by keeping accessories to a minimum.