Prince Charles, Prince of Wales, and Diana, Princess of Wales, visit Australia, Princess Diana in Tasmania, The princess is wearing the Spencer family tiara and a dress by Bruce Oldfield, State Reception in Hobart, 30th March 1983. (Photo by John Shelley Collection/Avalon/Getty Images)
MUNICH, GERMANY - NOVEMBER 05: Diana, Princess of Wales (C), wearing a blue chiffon and lace dress with sequins designed by Catherine Walker, the leaf and flower diamond Spencer family tiara and aquamarine and diamond drop earrings, and Prince Charles, Prince of Wales (R) attend a banquet on November 5, 1987 in Munich, Germany. (Photo by Anwar Hussein/Getty Images)
BRISBANE, AUSTRALIA - APRIL 11: Diana, Princess Of Wales Attending A Reception At The Crest International Hotel, Brisbane, Australia Wearing The Spencer Tiara, The Royal Family Order Of The Queen And The Saudi Arabia Sapphire And Diamond Necklace And Earrings. (Photo by Tim Graham Photo Library via Getty Images)
GERMANY - NOVEMBER 02: Diana, Princess of Wales wears a sapphire and diamond necklace, which was a gift from the Sultan of Oman, and the Spencer Tiara with a dress designed by Victor Edelstein to a banquet in Bonn, Germany (Photo by Tim Graham Photo Library via Getty Images)
Princess Diana (1961 - 1997) at a State Dinner in Saint John, New Brunswick, during the Royal Tour of Canada, 17th June 1983. She is wearing the Spencer tiara. (Photo by Tim Graham/Getty Images)
