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Nobel Laureate Lauds Washington Diamonds' CVD Technology

Jul 30, 2015 1:30 AM  
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RAPAPORT... The chemical vapor deposition (CVD) technology developed by Washington Diamonds Corporation (WDC) to produce lab-grown diamonds is very advanced and superbly controlled, according to Nobel Prize Laureate Dan Shechtman, who recently toured WDC’s facilities outside Washington, DC.

“Washington Diamonds’ technology allows nearly perfect control of the grown diamond properties,” Shechtman said. “With that technology, Washington Diamonds has succeeded in achieving what many other companies have been trying to do for the past three decades.” Shechtman was awarded the 2011 Nobel Prize in Chemistry in for his discovery of the quasi-periodic materials.

WDC’s CVD technology allows the firm to produce colorless stones – D and E color – up to 5ct carats in size. In the CVD process, a tiny fragment of diamond – or a “seed” – is placed in a chamber. Varying amounts of gases that include a carbon source are fed into the chamber. The gas mixture is heated to produce plasma in which the gases break down and carbon atoms adhere to the diamond seed, causing it to grow.
Tags: , cvd, Synthetics
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