Home Gemological Institute of America Lab-Grown Diamonds Setting New Dimension Data – JCK

Lab-Grown Diamonds Setting New Dimension Data – JCK

0
Lab-Grown Diamonds Setting New Dimension Data – JCK

[ad_1]

The Worldwide Gemological Institute (IGI) and the Gemological Institute of America (GIA) labs have lately examined the biggest lab-grown diamonds they’ve ever seen grown with the high-pressure, high-temperature (HPHT) and chemical vapor deposition (CVD) strategies.

In January, the IGI introduced it had seen a record-setting lab-grown blue crystal piece of tough (proven at high), which weighs 150.42 cts. and measures 28.55 mm x 28.25 mm x 22.53 mm. That is believed to be the biggest lab-grown diamond ever produced.

It additionally noticed a second grey crystal weighing 141.58 cts. that measures 28.9 mm x 28.5 mm x 20.75 mm.

“The acceleration of expertise within the lab-grown diamond sector is important,” mentioned IGI senior director of training John Pollard in an announcement. “Along with record-setting weights, they’re sort IIb crystals, a semiconducting class related to diamond-based electronics.”

Each diamonds have been grown in Ukraine with HPHT by Alkor-D, a subsidiary of Meylor World. Meylor had set the prior document for the world’s largest lab-grown diamond, which weighed 115 carats.

Ultimately yr’s JCK Las Vegas present, Meylor World CEO Yuliya Kusher informed JCK her firm was engaged on a 200 carat diamond.

“I don’t suppose CVD can try this,” she mentioned. She added that whereas most Chinese language producers use HPHT, “they’re making plenty of melee, [not even] 1 ct.”

Meylor World is the official distributor of diamonds created by New Diamond Expertise, the grower based mostly in Russia identified for producing record-setting diamonds. It’s owned by Ukrainian nationwide Timur Mindich.

As well as, the GIA lately examined the biggest identified polished lab-grown diamond it has ever seen produced by CVD.

The 16.41 ct. princess-cut diamond was grown with the CVD methodology by Shanghai Zhengshi Expertise Co., which has been engaged on CVD expertise since 2002.

GIA CVD diamond
That is the biggest CVD diamond the GIA has ever seen (picture courtesy of Gemological Institute of America).

The diamond evidenced no post-growth therapy and was graded G shade, VVS2 readability, GIA mentioned.

“The primary CVD diamond I examined in 2003 was a 0.23 ct. pear form, with clear brown shade,” mentioned Dr. Wuyi Wang, GIA vp of analysis and improvement, in an announcement. “This 16.41 ct. laboratory-grown diamond demonstrates the advances in CVD development expertise.”

Most U.S.-based firms, together with WD Lab Grown and Diamond Foundry, in addition to Indian firms, develop diamonds utilizing the CVD methodology.

High: The 150 ct. lab-grown diamond (picture courtesy of Worldwide Gemological Institute)

Observe JCK on Instagram: @jckmagazine
Observe JCK on Twitter: @jckmagazine
Observe JCK on Fb: @jckmagazine



[ad_2]

Source_link

LEAVE A REPLY

Please enter your comment!
Please enter your name here