GreenBiz.com 5. Lab-created diamonds shine Man-made, lab-grown diamonds that can be created in days rather than millions of years are a promising alternative to earth-mined diamonds and their many inherent problems. Lab diamonds are identical in all respects to the highest quality diamonds mined from the earth, with little environmental impact, compared with earth mining. Mike McMahon, CEO of the Greenville, S.C.-based Scio Diamond, says his company uses a proprietary process called Chemical Vapor Deposition (CVD) to manufacture high-quality Type IIa single-crystal diamond for use in electronics, optics, biotechnology and gemstones. For the jewelry industry, Scio Diamond creates many hues of diamond: colorless or near colorless, through the entire diamond color spectrum as well as yellow, pink and various shades of brown. While McMahon wouldn't discuss the cost structure of his product, he says most lab-grown diamonds for gemstones are less expensive than earth-mined ones. Due to high demand, Scio Diamond's manufacturing facility is up and running all day and night, only shutting down two days per year for maintenance. He said power is the company's largest raw material.
"Our air from chemical usage when we clean the diamond is scrubbed in our fume hoods and non-toxic when it reaches the environment through exhaust," McMahon said. "Our liquid waste is completely neutralized before being discharged. We do have couple of chemicals that we use in very small portions, about a Mason jar full each day. Those are captured, contained and disposed of by a licensed environmental company." http://www.greenbiz.com/blog/2014/02/14/5-ways-jewelry-becoming-cleaner-and-greener
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