Aquamarine, diamond, 18K white gold necklace. Photo courtesy Michaan's Auctions

Gross Weight: 57.2 dwts. Centering one emerald-cut aquamarine weighing approximately 63.00 cts., accented by eighteen baguette-cut diamonds weighing a total of approximately 1.50 cttw., further enhanced by three hundred and twenty-nine full-cut diamonds weighing a total of approximately 5.50 cttw., set in an 18k white gold articulated 18 inch necklace. Sold for $27,140

Michaan's Auctions. Fine Art, Furniture, Decorative Arts and Jewelry Auction. Friday, June 7, 2013. http://www.michaans.com