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When a gemstone is desired to be used in jewelry, it is cut depending on the size and shape of the rough stone, as well as the desired piece of jewelry to be made. As a general rule, a cut gemstone will reduce the mass (described in the carat) by about 50 percent.
There are several techniques available to work with gemstones; among them are sawing, grinding, sanding, lapping, polishing, grilling, and tumbling. The diamond cut planning stage is a complex process that requires the cutter to work with unique rough stones. Very often, the location of the inclusions in a rough stone will determine the type of shape to which a diamond may be cut. For economic reasons, most diamonds are cut to retain weight instead of maximizing brilliance.
A list of cuts:
* Antwerp rose cut
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When a gemstone is desired to be used in jewelry, it is cut depending on the size and shape of the rough stone, as well as the desired piece of jewelry to be made. As a general rule, a cut gemstone will reduce the mass (described in the carat) by about 50 percent.
There are several techniques available to work with gemstones; among them are sawing, grinding, sanding, lapping, polishing, grilling, and tumbling. The diamond cut planning stage is a complex process that requires the cutter to work with unique rough stones. Very often, the location of the inclusions in a rough stone will determine the type of shape to which a diamond may be cut. For economic reasons, most diamonds are cut to retain weight instead of maximizing brilliance.
Types
A list of cuts:
* Antwerp rose cut
*Asscher cut
The Royal Asscher Diamond Company ( nl, Koninklijke Asscher Diamant Maatschappij) was founded in 1854 by the Asscher family of gemcutters. The company is responsible for cutting some of the most famous diamonds in the world including two of the t ...
*Baguette cut
A diamond cut is a style or design guide used when shaping a diamond for polishing such as the Brilliant (diamond cut), brilliant cut. Cut does not refer to shape (pear, oval), but the symmetry, proportioning and polish of a diamond. The cut of a ...
* Barion cut
* Brilliant cut
*Briolette
A briolette is a style of gemstone cut - an elongated, faceted pear shape. It is often drilled to hang as a bead. The style was popular during the Victorian era.
The Smithsonian Institution has a diamond briolette necklace presented by Napo ...
*Cabochon
A cabochon (; ) is a gemstone that has been shaped and polished, as opposed to faceted. The resulting form is usually a convex (rounded) obverse with a flat reverse. Cabochon was the default method of preparing gemstones before gemstone cuttin ...
* Calla Cut
* Ceylon cut
*Cushion or old mine cut
* Double Dutch rose cut
*Emerald cut
A diamond cut is a style or design guide used when shaping a diamond for polishing such as the brilliant cut. Cut does not refer to shape (pear, oval), but the symmetry, proportioning and polish of a diamond. The cut of a diamond greatly affects ...
* Flanders cut
*French cut
* Heart brilliant
*India cut
India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...
* King brilliant
* Kite brilliant
* Line-Cut
* Lozenge cut
* Magna brilliant
* Marquise or navette cut
* Mogul cut
* Obus cut
* Oval brilliant
* Pear or drop brilliant
*Pendeloque
A pendeloque is a pear-shaped modification of the round brilliant cut used for diamonds and other gemstones.
See also
* Briolette
* Cut (gems)
When a gemstone is desired to be used in jewelry, it is cut depending on the size and shape of the ...
cut
*Princess cut
The princess cut (technical name 'square modified brilliant') is a diamond cut shape often used in engagement rings. The name dates back to the 1960s, while the princess cut as it exists was created by Betazel Ambar, Ygal Perlman, and Israel Itz ...
* Radiant cut
* Rose or rosette cut
*Round brilliant
A brilliant is a diamond or other gemstone cut in a particular form with numerous facets so as to have exceptional brilliance. The shape resembles that of a cone and provides maximized light return through the top of the diamond.
Even with mode ...
* Single or eight cut
* Square emerald
* Star brilliant
* Step cut
* Transitional cut
* Trapezoid or trapeze cut
* Trilliant cut, a.k.a. trillian or triangle cut
* Whirl cut
See also
*Diamond cut
A diamond cut is a style or design guide used when shaping a diamond for polishing such as the brilliant cut. Cut does not refer to shape (pear, oval), but the symmetry, proportioning and polish of a diamond. The cut of a diamond greatly affects ...
References
Further reading
* Warren, Larter (1936). ''The Line-Cut Diamond'', pp. 19–20.Gemological Institute of America
The Gemological Institute of America (GIA) is a nonprofit institute based in Carlsbad, California. It is dedicated to research and education in the field of gemology and the jewelry arts. Founded in 1931, GIA's mission is to protect buyers and se ...
, USA, Vol. 2, No. 2 (Summer 1936)
* Shipley, Robert M. (1936). ''Gemological Glossary'', pp. 7. Gemological Institute of America
The Gemological Institute of America (GIA) is a nonprofit institute based in Carlsbad, California. It is dedicated to research and education in the field of gemology and the jewelry arts. Founded in 1931, GIA's mission is to protect buyers and se ...
, USA, Vol. 2, No. 4 (Winter 1936)
External links
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