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An impressive diamond single-stone ring. Photo courtesy Bonhams

The marquise-cut diamond, weighing 5.13 carats, between shoulders pavé-set with brilliant, baguette and marquise-cut diamonds, remaining diamonds approximately 3.00 carats total, ring size 7. Estimate HK$ 2.3 million - 3 million (€220,000 - 290,000)

Accompanied by a GIA report stating that the diamond is D colour and Internally Flawless. 

Further accompanied by a letter from GIA stating that the diamond has been determined to be type IIa. Report number 11318762, dated 21 March 2013.

Bonhams. FINE JEWELLERY & JADEITE. Hong Kong.23 Nov 2013