Art Deco Diamond, Platinum Ring. Photo Heritage Auctions

The ring features a marquise-cut diamond measuring 14.13 x 7.13 x 4.72 mm and weighing 3.01 carats, enhanced by baguette-cut diamonds, set in platinum. A GIA Laboratory report # 8531713, dated March 14, 2013, stating D color, Internally Flawless clarity, accompanies the center stone. Gross weight 3.41 grams. Size: 5-1/2 (sizeable). Estimate: $100,000 - $125,000.

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