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BONN, GERMANY - NOVEMBER 02: Diana, Princess of Wales, wearing the Spencer family tiara and crescent shaped diamond and sapphire earring, necklace and bracelet given to her by the Sultan of Oman and a dress designed by Victor Edelstein, attends a banquet on November 02, 1987 in Bonn, Germany (Photo by Anwar Hussein/Getty Images)

BONN, GERMANY - NOVEMBER 02:  Diana, Princess of Wales, wearing the Spencer family tiara and crescent shaped diamond and sapphire earring, necklace and bracelet given to her by the Sultan of Oman and a dress designed by Victor Edelstein, attends a banquet on November 02, 1987 in Bonn, Germany (Photo by Anwar Hussein/Getty Images)