Joshua Davis writes:
This winter, a sparkling diamond landed in front of a technician at the Gemological Institute of America in New York City. He ran tests, noted the stone was man-made, and graded it as he would any diamond. It was the gem industry’s strongest acknowledgment yet that lab-grown diamonds are just as real as natural ones.
More info @ http://www.wired.com/wired/archive/15.02/start.html?pg=6
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