In this undated photo provided by Christie’s Auction House in New York, a 20-carat D-color Cartier diamond ring from the estate of the late copper heiress Huguette Clark is shown. The piece a sold ... more 
In this undated photo provided by Christie’s Auction House in New York, a 20-carat D-color Cartier diamond ring from the estate of the late copper heiress Huguette Clark is shown. The piece a sold for $3,106,500 at Christies’ New York Magnificent Jewels auction on Tuesday, April 17, 2012. (AP Photo/Christie’s Auction House) less 
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Associated Press | Photo By Christie’s Auction House
Tue, Apr 17, 2012 9:32 PM EDT