A giant 709-carat diamond unearthed in Sierra Leone has sold at auction in New York for $6.5m (£4.8m). Laurence Graff, chairman of Graff Diamonds, won the precious stone - nicknamed the "peace ...
But those factors have since reversed, according to Paul Zimnisky, a New York-based independent diamond ... data showed the ...
TASS/. The countries of G7, as well as the countries of the European Union, intend to completely ban import of diamonds from the Russian Federation, the New York Times reported on Monday.
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