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    What are the raw materials of synthetic diamonds? - Quora

    It uses graphite or diamond powder, or a mixture of graphite and diamond powder as a carbon source, and dissolves them in an iron-nickel alloy catalyst. The temperature gradient of the high-temperature ultra-high pressure reaction chamber causes t...

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    The main diamond is made by high quality lab created diamond. Between 1-1.5carats, brand new without tag, no flaws, box included, price is negotiable.</p> $250.00

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    TREATMENT: There are two types of lab created rubies, which use different types of processing to create the red crystals. Both processes use the basic minerals necessary to create the red color associated with the ruby. The color is the result of combining aluminum oxide (which, by itself, is colorless) with chrome, creating a mineral known a corundum, or ruby.

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    Raw materials needed are methane and hydrogen gases and they are easily available from various sources. However, growing diamonds is a very complex challenging process and requires a lot of understading of the undergoing science to achieve the des...

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    CVD is an acronym for chemical vapor deposition. This means that a material is deposited from a gas onto a substrate and that chemical reactions are involved. What is CVD diamond ? Synthetic diamond prepared by CVD techniques. Why is it difficult to synthesize diamond ? Diamond consists - like coal or graphite - of carbon.

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    Lab grown and made of carbon, they have all the properties of mined diamonds - including flaws and grading - because they are in every way, diamonds. You can find them at 1215diamonds.com in loose stones or in pre-set engagement rings.

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    MiaDonna lab-created diamonds are produced in a modern day lab environment and, at a this point, are only limited by the technology used to grow them. Price per carat for identical Cut, Clarity and Color: Lab-created diamonds cost up to 40% less than an earth-mined diamond equivalent. Earth mined diamonds pricing is dependant on cut, clarity ...

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    Synthetic diamond - Wikipedia

    A synthetic diamond (also known as a laboratory-grown diamond, a cultured diamond, or a cultivated diamond) is a diamond produced by a controlled process, as contrasted with a natural diamond created by geological processes or an imitation diamond made of non-diamond material that appears similar to a diamond.

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    Geek Answers: Are diamonds about to get a whole lot cheaper? ... Lab-made diamonds vary even more widely in the middle of that range, but real, pure-carbon synthetic diamond can run as high as $5 ...

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    PDF Ecological Comparison of Synthetic versus Mined Diamonds

    The average energy needed to produce a medium- quality synthetic diamond of three to seven carats at Apollo Diamonds is around 28 kilowatt- hours (kWh) per carat for a diamond which can usually take 2 to four weeks to be deposited for marketable sizes.

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    Synthetic Diamond Sources Unknown . Where do the CVD raw materials come from? We really don't know - at least not yet. Maybe the FBI will be able to find that out. The website asserts that "synthetic lab-grown diamonds [are] made [by] CobLabs Hong Kong Limited and [our] HPHT/CVD synthetic diamonds can pass all [natural] diamond testers.

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    Well faceted and very clear crystals with smooth surface and high compressive strength Synthetic Diamond is the hardest one among man-made materials.It is widely used in machine building,metallurgical,geological,building material,oil as well as electronic fields etc,because of its unique physical.....

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    Synthetic diamond is a lab-grown supermaterial that mimics and improves upon the chemically and physically inert characteristics that make natural diamond a key material for various scientific applications. Diamond synthesis enables precise control of the properties so that diamond can be ...

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    Synthetic Gemstone Guide - International Gem Society

    Editor's Note: Many gemstones can be created in the laboratory and have a longer manufacturing history than diamond. This synthetic gemstone guide covers rubies, sapphires, emeralds, opals, and many more species and explains their fabrication processes.This five-part series of articles, "Understanding Gem Synthetics, Treatments, and Imitations," is a chapter from Dr. Joel Arem's ...

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