Connect with us

Press Releases

IGI’s Hong Kong Lab Certifies Largest CVD Grown Diamond

The Institute records another benchmark certification within 90 days.

mm

Published

on

(PRESS RELEASE) HONG KONG — The International Gemological Institute’s (IGI) Hong Kong laboratory recently certified the largest chemical vapor deposition (CVD) laboratory-grown diamond received to date. This accomplishment arrives three months after the Institute’s historic analysis of the Guinness World Record holder for the biggest black lab-grown diamond.

“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.”

De Beers and Blue Nile Collaborate with 10 Women Designers on 10 New Engagement Rings
Photo Gallery

De Beers and Blue Nile Collaborate with 10 Women Designers on 10 New Engagement Rings

Jewelers Shine a Light on Distinctive Fixtures in Stores
Benchmarks

Jewelers Shine a Light on Distinctive Fixtures in Stores

2020 Jewelry Industry Obituaries: Farewell to the Ones We Lost
Photo Gallery

2020 Jewelry Industry Obituaries: Farewell to the Ones We Lost

With a finished weight of 12.75 carats, this collection-quality man-made gemstone was fashioned from a staggering 46.20 carat CVD-grown rough crystal. According to its creator, Shanghai Zhengshi Technology Co. Ltd., it is the largest CVD lab-grown diamond ever produced.

IGI gemologists confirmed the 12.75 carat 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 had not undergone any post-growth treatments, so it can be categorized as a truly pure CVD diamond.

“A laboratory-grown diamond of this carat weight, with such a high clarity and color grade, is a remarkable achievement in CVD cultivated diamond technology,” said IGI Hong Kong Managing Director Bob Van Es. “As the industry leader in the certification of laboratory-grown diamonds, IGI will continue to follow these new developments closely.”

For more information about this diamond and IGI’s services, visit www.igi.org and gemblog.igi.org.

Advertisement

Continue Reading
Advertisement

SPONSORED VIDEO

Wilkerson Testimonials

Retirement Made Easy with Wilkerson

The store was a landmark in Topeka, Kansas, but after 80 years in business, it was time for Briman’s Leading Jewelers to close up shop. Third generation jeweler and owner Rob Briman says the decision wasn’t easy, but the sale that followed was — all thanks to Wilkerson. Briman had decided a year prior to the summer 2020 sale that he wanted to retire. With a pandemic in full force, he had plenty of questions and concerns. “We had no real way to know if we were going to be successful or have a failure on our hands,” says Briman. “We didn’t know what to expect.” But with Wilkerson in charge, the experience was “fantastic” and now there’s plenty of time for relaxing and enjoying a more secure retirement. “I would recommend Wilkerson to any retailer considering a going-out-of-business sale,” says Briman. “They’ll help you reach your financial goal. Our experience was a tremendous success.”

Promoted Headlines

Most Popular