Burmese Ruby, Sapphire, Diamond, Gold Ring, Bvlgari. Photo Heritage Auctions

The ring features an oval-shaped ruby measuring 9.85 x 7.00 x 4.28 mm and weighing 3.20 carats, flanked by oval-shaped sapphires weighing a total of approximately 0.75 carat, accented by full-cut diamonds weighing a total of approximately 1.55 carats, set in 18k gold, marked Bvlgari, C2131. An AGL report # CS 53020 dated January 23, 2013, stating Natural Corundum, Burma (Myanmar) Origin, No Evidence of Heat, accompanies the ruby. Gross weight 8.00 grams. Size: 6-1/2 (sizeable) Estimate: $20,000 - $30,000.

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