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Dopping cement, dopping wax, or faceting wax is a thermal adhesive used by gem cutters to secure ("dop") a gemstone to a wooden or metal holder ("dopstick", "Tounded stick") for grinding and lapping.
The Asscher cut was a staple of art deco and art nouveau era jewellery, with its straight lines and faceting arrangement aligning with the clean and graphic elements espoused by the movement. Because of the facet arrangement, high crown and depth, Asschers are known for creating a "hall of mirrors" effect.
There are two general types of gemstone cutting: cabochon and facet. Cabochons are smooth, often domed, with flat backs. [ 1 ] Agates and turquoise are usually cut this way, but precious stones such as rubies , emeralds and sapphires may also be.
Bruting is the art of cutting a diamond to make the girdle round. In the modern era diamonds are rounded using either a laser, a diamond disk impregnated with diamonds, or spinning two diamonds so they cut against each other. Industrial diamonds can also be used for bruting a diamond round.
Cutting en cabochon (French: "in the manner of a cabochon") is usually applied to opaque gems, while faceting is usually used for transparent stones. Hardness is also taken into account as softer gemstones with a hardness lower than 7 on the Mohs hardness scale are easily scratched, mainly by silicon dioxide in dust and grit.
The art of cutting a gem is an exacting procedure performed on a faceting machine.The ideal product of facet cutting is a gemstone that displays a pleasing balance of internal reflections of light known as brilliance, strong and colorful dispersion which is commonly referred to as "fire", and brightly colored flashes of reflected light known as scintillation.
In addition to the gang’s sex trafficking in New York, Tren de Aragua also took over the Gateway hotel in the West Texas border city, wielding guns and hatchets while also engaging in fights ...
Simon & Schuster's Guide to Gems and Precious Stones, pp. 58–68. New York: Simon & Schuster. ISBN 0-671-60430-9. Holloway, Garry (2000–2004). HCA: defining ideal cut diamonds is a detailed explanation of the "Holloway Cut Adviser". A web service that uses this software is available. Malecka, Anna (2017).
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