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Lab-grown diamonds of various colors grown by the high-pressure-and-temperature technique. A synthetic diamond or laboratory-grown diamond (LGD), also called a lab-grown diamond, [1] laboratory-created, man-made, artisan-created, artificial, synthetic, or cultured diamond, is a diamond that is produced in a controlled technological process (in contrast to naturally formed diamond, which is ...
De Beers is synonymous with diamonds, having coined the phrase “Diamonds are forever” back in 1947. However, the company’s own business in precious stones has been in jeopardy following ...
Lemoine agreed and promised him an option to buy his secret formula, which he deposited in a London bank deposit box. For the next three years, Sir Julius sent Lemoine a total of £64,000. Lemoine promised to build a factory to duplicate diamonds; actually he just took a picture of an electric plant in southern France and sent it to Sir Julius.
Synthetic diamonds are produced via high pressure, high temperature or chemical vapor deposition (CVD) technology. These diamonds have numerous industrial and commercial uses including cutting tools, thermal conductors and consumer diamond gemstones .
To date, the largest custom-grown diamond Vrai has created for a customer was a 12-carat diamond in an emerald shape, but Vrai is also currently stocking loose diamonds on its website that are ...
Since the 1950s, techniques can produce gem-quality diamonds of essentially any desired chemistry in sizes up to about 1cm. [6] Although some manufacturers do label their synthetic diamonds with serial numbers, there is no guarantee that a given diamond is not man made, although sometimes an unnatural chemical composition or pattern of flaws may suggest a diamond is synthetic.
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