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World’s largest colorless grown diamond

World’s largest colorless grown diamond

Related topics: world-record diamond, the biggest lab-grown diamond, lab-grown diamonds, synthetic diamonds, HPHT diamonds, man-made diamonds, eco-friendly, conflict-free


International Gemological Institute (IGI) Hong Kong reports that this week it certified what it believes is the world’s largest HPHT-grown colorless diamond, a 10.02 carat Square Emerald Cut.


The stone was fashioned from a record-breaking, 32.26 Ct. piece of man-made rough, grown by St. Petersburg-headquartered New Diamond Technology LLC, in less than 300 hours.


The laboratory certified the Type IIa stone as VS1 clarity, E color, with a Very Good-Excellent finish grade.


This follows only two months after IGI certified a 5 carat Radiant Brilliant and 4 carat Cushion Brilliant at its Hong Kong laboratory – grown by the same company – which were then believed to be the largest man-made diamonds in existence. However, the ever-increasing speed of scientific evolution proved differently


Marc Brauner, co-CEO IGI Worldwide, elaborated that the latest 10 carat stone is unique in all aspects, and that the science and technology behind the processes synthesizing this stone are significantly more advanced than other man-made diamonds currently on the market. The stone’s large size, in combination with the very high color and breathtaking brilliance, will ensure it a prominent place among the pioneers in the diamond industry.


Mr. Tamazi Khikhinashvili, President of New Diamond Technology (NDT), explained that NDT is a leading pioneer in growing diamonds by High Pressure-High Temperature (HPHT) technologies. He added that, since its inception, NDT has been at the vanguard conducting in-depth research in the field of growing Type IIa colorless (D-E-F) and Type IIb (blue) pure single-crystal rough diamonds.


Today the company's state-of-the-art technology enables growing large rough diamonds, both for luxury and high-tech / industrial applications, including jewelry, electronics, semiconductors, sensors, aerospace, optics, medicine, alternative energy, among many others.

Mr. Tamazi is proud to announce that the company plans to unveil the diamond during JCK Las Vegas 2015, the gem and jewelry industry's most prestigious trade event, at their booth (No: B2408).