Diana wore this green velvet gown while hosting private dinners and parties in 1985. Inspired by dresses from 1940s England, it features wide padded shoulders and gathers to the front midriff and rear hips to accentuate its narrow waist. Edelstein decorated the gown with black beaded buttons, which he removed from a Victorian cape he found in a Paris antiques market.
Guide price: £20,000 to £30,000