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Largest Man Made Diamond

The International Gemological Institute (IGI) of Hong Kong has certified what it believes is the world’s largest HPTP-grown colourless diamond.

The 10.02 carat Square Emerald Cut stone was fashioned from a record-breaking, 32.26-carat piece of man-made rough, grown by St. Petersburg-based New Diamond Technology LLC, in less than 300 hours.

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  • Please excuse my hard working Jewellers hands 🙈but I just had to show you this amazing IGI Certified 4.10ct... https://t.co/Puj3bMfIVW

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