8:14 AM
john dryden
The idea of making artificial diamond isn't new. H.G. Wells proposed exactly such a thing in his story "The Diamond Maker" in 1911. Since then, scientists have come up with ways to create synthetic diamonds and diamond simulants like cubic zirconia - but experts could always tell them apart. Until now.
In the past decade, scientists have perfected a technique called Chemical Vapor Deposition, where carbon gas cloud is passed over diamond seeds in a vacuum chamber heated to more than 1,800 degrees. In a matter of days, they are now able to "grow" diamonds that are virtually indistinguishable from natural ones, even to the experts:
Seeking an unbiased assessment of the quality of these laboratory diamonds, I asked Bryant Linares to let me borrow an Apollo stone. The next day, I place the .38 carat, princess-cut stone in front of Virgil Ghita in Ghita's narrow jewelry store in downtown Boston. With a pair of tweezers, he brings the diamond up to his right eye and studies it with a jeweler's loupe, slowly turning the gem in the mote-filled afternoon sun. "Nice stone, excellent color. I don't see any imperfections," he says. "Where did you get it?"
"It was grown in a lab about 20 miles from here," I reply.
He lowers the loupe and looks at me for a moment. Then he studies the stone again, pursing his brow. He sighs. "There's no way to tell that it's lab-created." (Source)
But if you think that the price of diamond will fall precipitously, think again. Companies that make cultured diamonds like Apollo and Gemesis aren't stupid: they're not going to kill the goose that laid the diamond egg by flooding the market with cheap stones
In the past decade, scientists have perfected a technique called Chemical Vapor Deposition, where carbon gas cloud is passed over diamond seeds in a vacuum chamber heated to more than 1,800 degrees. In a matter of days, they are now able to "grow" diamonds that are virtually indistinguishable from natural ones, even to the experts:
Seeking an unbiased assessment of the quality of these laboratory diamonds, I asked Bryant Linares to let me borrow an Apollo stone. The next day, I place the .38 carat, princess-cut stone in front of Virgil Ghita in Ghita's narrow jewelry store in downtown Boston. With a pair of tweezers, he brings the diamond up to his right eye and studies it with a jeweler's loupe, slowly turning the gem in the mote-filled afternoon sun. "Nice stone, excellent color. I don't see any imperfections," he says. "Where did you get it?"
"It was grown in a lab about 20 miles from here," I reply.
He lowers the loupe and looks at me for a moment. Then he studies the stone again, pursing his brow. He sighs. "There's no way to tell that it's lab-created." (Source)
But if you think that the price of diamond will fall precipitously, think again. Companies that make cultured diamonds like Apollo and Gemesis aren't stupid: they're not going to kill the goose that laid the diamond egg by flooding the market with cheap stones
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