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NDT Produces Biggest Synthetic Blue Diamond
Sep 20, 2016 4:13 AM
By Rapaport News
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RAPAPORT...
New Diamond Technology (NDT) unveiled a 10.07-carat lab-grown
diamond that it claims is the world’s largest polished blue synthetic diamond.
The emerald-cut, fancy deep blue, SI1 stone was graded by
the International Gemological Institute (IGI) in Antwerp and put on display at
the Hong Kong Jewellery & Gem Fair last week.
NDT, headquartered in St Petersburg, Russia, said it presented
a 5.03-carat polished blue synthetic diamond at the Baselworld show in
Switzerland in March. The stone was produced using the company’s high-pressure,
high-temperature process.
In May last year, NDT claimed it manufactured the “world's
largest known colorless lab-grown diamond,” weighing 10.02 carats and certified
by IGI.
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Tags:
lab-grown diamonds, NDT, New Diamond Technology, Rapaport News, Russia, Synthetics
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