Pandora’s lab-made diamonds are being made in Britain, and the UK is the first country where they will be sold. The new diamond jewelry will start at $350. […] One problem with lab-made diamonds, though, is that they can take a lot of energy to produce. Between 50% and 60% of them come from China, where they are made in a process known as “high-pressure, high-temperature technology.” The use of coal powered electricity is widespread. However in the United States, the biggest retail market for lab-grown diamonds, there is a greater focus on using renewable energy. The largest US producer, Diamond Foundry, says its process is “100% hydro-powered, meaning zero emissions.” Both types are chemically and physically identical to mined diamonds.
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