Edwardian Burmese Ruby, Diamond, Platinum Ring. Photo Heritage Auctions

The ring features an oval-shaped ruby measuring 9.13 x 7.52 x 4.29 mm and weighing approximately 2.36 carats, enhanced by rose-cut diamonds weighing a total of approximately 0.36 carat, set in platinum. A GIA Laboratory report #2145765109, dated June 28, 2012, statingNatural Corundum, Natural Ruby, CMT Type I, Origin Burma (Myanmar), No Indications of Heating, accompanies the ruby. Gross weight 3.90 grams. Size: 5-3/4 (sizeable) Estimate: $18,000 - $20,000.

Heritage Auctions. 2013 April 29. Jewelry Signature Auction - New York - http://jewelry.ha.com