Issue Date: January 30, 2017
How synthesized precious gems are passing as natural
The international gem trade can be a shady business. In a quiet corner of a busy London pub, a trader, who asked to remain anonymous, tells C&EN about passing off synthetic gems, made in a manufacturing plant, as natural.
“This is worth more than $500,000,” the trader says, flashing a hand upward to reveal a gold ring clasping an emerald the size of a sugar cube. “Well it would be, depending on whether you consider . . .
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