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Green Diamond
De Beers’ own Diamond Research Center, Maidenshead, England, reached the same conclusion about these gems. “When you have a large number of stones of different origins and morphology but all the same hue, you have to suspect that they were treated en masse,” says Martin Cooper, director of Research and Development.
Two natural green diamonds, each less than a carat in size, courtesy of L.J. West, New York.
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