TOKYO -- Global diamond leader De Beers stunned the industry in late May when it said it would reverse a long-standing policy and start marketing a synthetic-diamond brand, a move made necessary by the rising standards and growing production of the man-made gems by Chinese manufacturers.
Commodities
De Beers defends turf against China's lab-made diamonds
World's largest diamond company frames synthetic gem stones as casual jewelry
Diamonds can be produced in bulk in just a few weeks in a lab.
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