Lot 636. A 11.29 carats Ceylon Sapphire and Diamond Ring, by Chaumet. Estimate HK$ 500,000 - 700,000 (€61,000 - 85,000). Photo: Bonhams.
The cushion-shaped sapphire, weighing 11.29 carats, between baguette-cut diamond shoulders, signed Chaumet Paris, maker's mark, French assay mark, ring size 4¾
Accompanied by a SSEF report stating that the natural sapphire has no indications of heat treatment and originates from Ceylon (Sri Lanka). Report number 58613, dated 18 February 2011.
Bonhams. RARE JEWELS & JADEITE, 30 Nov 2016, 15:00 HKT - HONG KONG, ADMIRALTY