Diana wore this burgundy number to two high-profile events: the February 1990 premiere of the film “Steel Magnolia” and a 1992 state visit to South Korea. Writing in her autobiography, designer Catherine Walker later said that Diana had altered Walker’s original idea. “This design was in fact inspired by the coloring of an Imperial Russian court dress and was originally offered to the Princess as a burgundy tailcoat over a rich ivory silk crepe busiter dress,” she wrote. “The Princess, however, felt that all burgundy would be more fluid and easier to wear, and I think she was right.”
Guide price: £40,000 to £60,000