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A group of former GT Solar executives has launched Diamond Works Technology Inc., a Manchester firm that aims to scale up production of lab-grown diamonds using an advanced diamond-growth process that it has acquired.

The OneStep CYD technology has been acquired from Diamond Works’ technology partner, Sonani Jewels Pvt. Ltd., a company based in India.

At the former GT Solar, the predecessor company of GT Advanced Technologies in Hudson, the executives say they worked on commercializing crystal growth technologies, scaling factories to volume production and building global supply chains for the advanced materials.


This emerald cut, lab-grown diamond was produced using the Diamond Works Technology OneStep continuous growth process technology.

According to CEO Tom Zarrella, the OneStep process can produce large, high-quality diamonds that are capable of being cut into fancy shapes — products that are in high demand but short supply.

Lab-grown diamonds are a growing segment of the over $80 billion global diamond gemstone jewelry market, and it is projected to keep growing, due in large part to their lower costs and to younger consumers placing a value on sustainability and traceability in the products they purchase. — JEFF FEINGOLD

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