The 1,109-carat stone is about the size of a tennis ball and was expected to sell for $70 million at a Sotheby’s auction in London.
By Courtney Norris
Napoleon Bonaparte's trademark bicorn hat sold at auction near Paris on Sunday for roughly $2.4 million.
By Andrew Mach
The U.S. Marshals Service held an auction Friday of nearly 30,000 bitcoins seized from the now-shuttered online black market, Silk Road.
By Xander Landen
As part of his ongoing series, Making Sense of the economy, Paul Solman takes a real estate tour in Atlanta, Ga., with two experts on home sale prices.
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