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(EDITORS NOTE: Retransmission of #960192808 with alternate crop.) Diana, Princess Of Wales wears an emerald-cut aquamarine ring as she attends The Victor Chang Research Institute Dinner Dance During Her Visit To Sydney, Australia. (Photo by Julian Parker/UK Press via Getty Images)

(EDITORS NOTE: Retransmission of #960192808 with alternate crop.) Diana, Princess Of Wales wears an emerald-cut aquamarine ring as she attends The Victor Chang Research Institute Dinner Dance During Her Visit To Sydney, Australia. (Photo by Julian Parker/UK Press via Getty Images)