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Fine Jewelry University Articles matching: “Gold pendant round”

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Fine Jewelry University

  1. Early attempts at making lab grown diamonds

    How Are Lab Grown Diamonds Made?

    FJU Category: Lab Grown Diamonds | Tags: Gemology, Jewelry History, Jewelry Tech, Lab Grown Diamonds, Synthetic Gemstones

    …. High Pressure High Temperature Diamonds How does nature form diamond crystals? Nature does it very deep underground. Diamond growing naturally takes place about 100 miles below the earth’s surface. Why? Because that is where the … above 2,000 degrees Celsius. In this environment, the pure carbon melts and begins to form into a diamond around the starter seed. On December 16, 1954, a belt press was used to create the first reproducible lab grown diamond. The diamond…

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