An important sapphire and diamond ring

An important sapphire and diamond ring 2

An important 20.10 carats cushion-cut Burma  sapphire and diamond ringEstimate $380,000 – $450,000. Photo Christie's Image Ltd 2015

Set with a cushion-cut sapphire, weighing approximately 20.10 carats, to the circular-cut diamond gallery and half-hoop, mounted in platinum

With report 77388 dated 11 November 2014 from the SSEF Swiss Gemmological Institute stating that the origin of this sapphire is Burma (Myanmar). No indications of heating

With report 14097127 dated 15 September 2014 from the Gübelin Gem Lab stating that gemmological testing revealed characteristics consistent with those of sapphires originating from Burma (Myanmar). No indications of heating

Christie'sMAGNIFICENT JEWELS, 14 April 2015, New York, Rockefeller Plaza