Largest ever CVD laboratory-grown diamond hailed a “remarkable achievement”

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Largest ever CVD laboratory-grown diamond hailed a “remarkable achievement”

Postby PinkDiamond » Sat Nov 28, 2020 8:00 pm

Wow, they really did achieve a remarkable size, with excellent color and clarity in this lab-grown diamond, making it a first for its size and quality. 8-)

Largest ever CVD laboratory-grown diamond hailed a “remarkable achievement”
Diamonds & Gemstones News by Sam Lewis on 24th November 2020


The International Gemological Institute’s (IGI) Hong Kong laboratory has certified the largest chemical vapor deposition (CVD) laboratory-grown diamond received to date.

"With a finished weight of 12.75 carats, this collection-quality man-made gemstone was fashioned from a 46.20 carat CVD-grown rough crystal.

According to its creator, Shanghai Zhengshi Technology, it is the largest CVD lab-grown diamond ever produced.

“For the past 15 years, IGI has been at the forefront of lab-grown certification and education,” stated IGI CEO, Roland Lorie. “With this milestone, the Institute continues to establish itself as the prominent leader in the industry and opens the door for future opportunities to exceed current gemological standards.”

IGI gemologists confirmed the 12.75ct stone was Type IIa, giving it exceptional chemical purity and transparency, with VVS2 clarity, F color, and triple-excellent marks in cut-quality and finish.

Following detailed scientific analysis, the laboratory substantiated that the stone ... " ... hievement/
ISG Registered Gemologist

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