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What is the difference between a natural and artificial diamond?
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A natural diamond is one that has been formed over millions of years from carbon-containing materials. An artificial diamond is one that is made by humans using a process called chemical vapor deposition (CVD). CVD involves heating up a mixture of gases to a high temperature, which causes the carbon atoms in the gas to bond together. This creates a layer of carbon atoms on the surface of the substrate, which eventually forms into a diamond crystal. Natural diamonds are much rarer than synthetic diamonds, as they are found only in certain geological formations. Artificial diamonds are more common, but they lack some of the unique characteristics of natural diamonds.