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Lot 80. A Burma ruby and diamond fringe necklace, by Harry WinstonEstimate CHF350,000 – CHF550,000 ($369,068 - $579,964). Photo Christie's Image Ltd 2016

Designed as a series of graduated cabochon rubies and pear-shaped diamond cluster panels, interspersed with pear-shaped and marquise-cut diamond clusters, suspending twenty-five similarly-set drops, set with oval and pear-shaped cabochon rubies, 43.0 cm, mounted in platinum and gold. With maker's mark of Jacques Timey for Harry Winston

Accompanied by report no. 85463 dated 6 April 2016 from the SSEF Swiss Gemmological Institute stating that the origin of the rubies is Burma (Myanmar), with no indications of heating. 

Christie's. GENEVA MAGNIFICENT JEWELS, 18 May 2016, Geneva