A sapphire and diamond ring. Photo courtesy Bonhams.

centering an oval-shaped sapphire, weighing 12.10 carats, within a three tiered round brilliant-cut diamond surround; estimated total diamond weight: 5.20 carats; mounted in platinum; size 6. Sold for US$ 37,500 (€27,191)

Accompanied by GIA report #2101532030, dated January 21, 2009, stating the sapphire as: Burma (Myanmar) origin, no indications of heating

Bonhams. Fine Jewellery New York. 19 Jun 2013 - www.bonhams.com