You'll wear the Ava dress this party season, and for many party seasons to come. Both timeless and alluring in black silk-velvet, it has a form-fitting bodice, asymmetric, dropped waist and sweeping, gathered skirt that falls to a maxi length. It is darted and panelled for a body-skimming fit, with concealed fastening at the back. Note the cropped, pearl-embellished sleeves – a luxurious detail. Style it with sheer tights, ballet flats and a vintage clutch, or opt for sleek heels and statement jewellery.