These gems make their own way
Gemstones made in the lab could improve your cell phone or catch nasty bacteria in your water.
By Roberta Kwok, 00:00 AM May 25, 2010
Tom Chatham’s desk is littered with gemstones. Rubies, sapphires, and emeralds are scattered like pieces of candy. Some of them are as big as golf balls.
We’re sitting on the seventh floor of a building in downtown San Francisco, upstairs from the famous jewelry store Tiffany & Co. But Chatham didn’t buy these gems at a jewelry store. His company, Chatham Created Gems & Diamonds, made them in its laboratories.
Lab-made gemstones can appear similar to those that form in Earth. This sapphir...
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