Why Is This Diamond Worth Nearly $30M?

April 11 (Bloomberg) -- Christie's Americas and Switzerland Head of Jewelry discusses the auction of "The Absolute Perfection" diamond on Bloomberg Television's "Taking Stock." (Source: Bloomberg)
Will Herbalife’s Earnings Prove Bill Ackman Right?
28:11 - Bloomberg’s Cory Johnson previews Herbalife’s earnings and reports on the company’s running battle with Pershing Square Capital Management CEO Bill Ackman. Johnson speaks on “Bloomberg Surveillance.” (Source: Bloomberg)
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