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World’s largest lab-cultivated diamond unveiled
It is a near colorless 3.04 carat, round stone, I color, SI1 clarity, very good cut. It sells for $23,012 on www.PureGrownDiamonds.com
By: Diamond World News Service
Dec 30 2014 5:15PM
Reference: 10989  

Dr. Devi Shanker Misra, a physicist and inventor, Chief Technical Officer, Pure Grown Diamonds, based in New York City, has unveil the world’s largest, laboratory-cultivated brilliant white diamonds that are indistinguishable from mined diamonds, says a report. Dr Misra was formerly a professor at the Indian Institute of Technology Bombay.

The pure grown diamonds cost 30 to 40 per cent less than mined diamonds. “This 21st Century technological achievement comes during the holiday season when 26 percent of all marriage proposals occur; a few weeks before Valentine’s Day when six million couples get engaged; when most men spend 25 percent of their annual salaries on a diamond ring and when prices are at an all-time high – up 75 per cent since 2009, due to depletion of natural resources,” said Pure Grown Diamonds President and CEO Lisa Bissell, in a statement.

“During the past 70 years, many have tried to grow scintillating, sizeable, colorless diamonds but have failed,” explains Misra, in a statement. “No one, no company has achieved what Pure Grown Diamonds has accomplished — culturing thousands of alluring diamonds that rival mined-diamonds, in every aspect.”

Misra is the inventor of the patented Pure Grown Diamond process that cultivates incredible diamonds in a Microwave Plasma Chemical Vapor Deposition chamber from a small carbon seed. It takes from one-and-a-half to two-and-a-half-months to grow a diamond. Pure Grown Diamonds have the exact same chemical composition, physical properties and optical features as earth-mined diamonds, according to the International Gemological Institute.

The world’s largest laboratory Pure Grown Diamond was cultivated in late November. It is certified by the International Gemological Institute. It is a near colorless 3.04 carat, round stone, I color, SI1 clarity, very good cut. It sells for $23,012 on www.PureGrownDiamonds.com

Mined diamonds of near identical characteristics sell from between $38,000 and $46,000 on some of the best-known jewelry websites in America, said the release.

Pure Grown Diamonds quality one carat stones are priced from $1,000 to $4,000. A one carat mined diamond starts at $5,000. One carat round diamonds are the most popular for engagement rings in the U.S. Starting price for diamond jewelry is about $300.

Most Pure Grown Diamonds are E-H color and VVS1-VS2 clarity certified. The highest colorless rating is D. The highest clarity rating is VVS1.

Pure Grown Diamonds are cultivated at its Singapore sister company IIa Technologies’ state-of-the-art facilities where the earth’s process of crystalizing carbon is exactingly replicated, said the release. A diamond seed is placed inside a low-pressure microwave chamber. Hydrogen and methane gases are introduced. A microwave generator pumps energy into the chamber that ignites a glowing plasma ball. Carbon molecules rain on the seed. Crystallization begins. The process is completed within 42 to 70 days. The diamond is cut with a laser, polished and then certified, adds a release.

Pure Grown Diamonds are Type IIa diamonds, which have a unique growth structure. Pure Grown Diamonds are detectible only by highly sophisticated equipment and from their laser-scribed identifications on the stones’ girdles that read, “Lab Grown.”

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