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An exceptional diamond single-stone ring. Photo Bonhams.

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The brilliant-cut diamond, weighing 7.33 carats, within a six-claw setting, ring size 6. Estimate HK$ 7 million - 9 million (€650,000 - 840,000)

Accompanied by a GIA report stating that the diamond is D colour and Internally Flawless, with Excellent Cut, Polish and Symmetry. Report number 1122925607, dated 11 January 2011.

Bonhams. FINE JEWELLERY & JADEITE. Hong Kong, Admiralty, 21 May 2014 - www.bonhams.com