How to Appropriately Create Lab-Made Diamonds
Lab made, or synthetic, diamonds are gaining recognition inside the diamond and jewelry business for quite a number of reasons. Although they’re exactly the same optically, chemically and physically as a diamond that was mined, these diamonds are produced using a machine and are usually significantly lower in value. They go by several names, like lab grown, lab designed, man made, synthetic and cultured diamonds. The term “cultured diamonds,” nonetheless, just isn’t favored by gem organizations and diamond buyers, who really feel it really is deceptive. Man created diamonds could be grown in many colors, like yellow, green, blue and colorless/white.
Lab-made diamonds had been initial created inside the 1950′s by ASEA and GE using the big belt-style presses from the time. These diamonds were very various than the synthetic diamonds sold nowadays and were not gem quality as they had been tiny, heavily included and had poor color. In the 1970′s and 80′s, smaller cubic presses were made which could develop gem-quality sizes, although the color was nevertheless off and primarily brown and yellow industrial-grade diamonds were made.
It wasn’t till the late 80′s and early 90′s that the most efficient technique to date was made. The BARS press was designed in Russia and creates rough diamonds that are up to 6 carats in size, even though the polished yield does depend on aspects like inclusions and the growth cycle duration. All machines develop the high pressure and temperature (HPHT) necessary for carbon atoms to construct upon a little seed inside a metal remedy.
Utilizing HPHT technology, fancy yellow diamonds are the easiest to develop as it really is quite difficult to avoid the nitrogen from entering the diamond’s lattice structure. Nitrogen helps diamonds develop, speeds the entire procedure and makes yellow synthetic diamonds the fastest, easiest and most cost-effective to generate.
Fancy blue diamonds may also be made by trapping boron in the lattice rather than nitrogen, though these diamonds are slower to grow and cost much more. Colorless diamonds are made by drastically decreasing the quantity of boron and nitrogen that enters the diamond lattice structure, which slows the growth of the diamond and indicates the pressure and heat should be sustained for longer periods of time. Due to the challenge of controlling the color and limiting the diamond’s inclusions, colorless synthetic diamonds are the most pricey and challenging to grow, making them one of the most costly.
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ASEA: Breakthrough Product
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