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General Electric managed to do produce manmade diamonds in 1954 by using a 400-ton press to crush carbon at an enormous pressure. GE's machine economically produced diamond dust for industrial uses, and by the early 1970s the company had even produced Manmade Diamonds as large as 2 carats. But that effort took so much time and electrical energy, that it was more expensive than buying a mined diamond. There are several current American operations attempting to make Manmade Diamonds. Carter Clarke, retired army general, stumbled into a manmade diamond producing process during a trip to Moscow in 1995. Clark bought the process and moved it to Sarasota Florida, where he has produced some large sized yellow Manmade Diamonds.
Another process for creating Manmade Diamonds is by chemical vapor deposition and has been used for more than a 10 years to cover relatively large surfaces with microscopic diamond crystals. The problem with the technology has always been that no one could figure out how to make a manmade diamond single crystal using that method. Apollo Diamond, a company in Boston, is rumored to be on the verge of a on a single-crystal manmade diamond breakthrough.
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Not only is diamond the hardest substance known, it also has the highest thermal conductivity. Today's speedy microprocessors run hot - at upwards of 200 degrees Fahrenheit. Artificial diamond microchips could handle much higher temperatures, allowing them to run at speeds that would liquefy ordinary silicon. With the arrival of companies producing manmade diamonds, there are huge possibilities for new and greater semiconductors. Current manmade diamond companies plan to use the diamond jewelry business to finance their attempt to reshape the semiconducting world.
So far, manmade diamonds are being used for industrial purposes. But in the near future these companies that are producing manmade diamonds will be putting their product on the market. Will their manmade diamonds be inexpensive? Will they try to have their manmade diamonds pass for mined diamonds? The problem for the diamond jewelry business is, ' how can you tell a natural diamond from manmade diamonds?' Scientists have made a couple of testing machines to separate manmade diamonds from natural diamonds, but so far they are very large, cumbersome processes, and too expensive for independent jewelers to buy.
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