Diana wore it twice, first on Valentine's Day 1997 (left) to open a renal unit at the Great Ormond Street Hospital, of which she was Patron. Diana rarely wore brooches, so it seemed unusual for her to accessorize it with one. However, there was a purpose - it was in honor of the Variety Club's Golden Heart Day. The children's charity sells a new golden heart brooch every year as a fundraiser, and Diana was promoting that. In June she wore it for a luncheon with Anna Wintour and Tina Brown of American Vogue(right) during her trip to New York City for the Christie's auction of her gowns.

The online Princess Diana Virtual Musuem has this suit on display, but as it was an off the peg item it's impossible to know whether that was the one she actually owned. They show up frequently on resale sites..