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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. [2]
It has a flat, polished surface, typically with a transparent surface that refracts light inside the gemstone and reflects light on the outside. [5] In the case of a cabochon stone, the side of the stone is usually cut at a shallow angle, so that when the bezel is pushed over the stone, the angle permits it to hold the stone tightly in place.
A cabochon stone, a gemstone that is not faceted, usually relies on the shallow angle cut into the side of the stone, which helps the metal to stay in place. With a clear, faceted stone, such as a diamond, a shallow groove is cut into the bezel itself. The girdle, or widest part of the gemstone, is placed in the bezel, which is then pushed down ...
In Australia, there are numerous gem shows, including an annual gem show called the GEMBOREE, which is a nationwide lapidary competition. There is a collection of gem and mineral shows held in Tucson, Arizona, at the beginning of February each year. The event began with the Tucson Gem and Mineral Society Show and has now grown to include dozens ...
Patented design of top faceting of the trillion cut diamond (Patent No. D-250,100) A trilliant cut, sometimes called a trillion, trillian, or Trielle is a triangular type of gemstone cut. The cut has many variations. It may have curved or uncurved sides. The shape of the top surface, or table, also varies. Stones typically have 31-50 facets. [1]
A scattering of "brilliant" cut diamonds shows off the many reflecting facets. A brilliant is a diamond or other gemstone cut in a particular form with 57-58 facets so as to have exceptional brilliance. The word 'brilliant' is also used for a diamond cut in this fashion.
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Close-up of briolette cut rose quartz Briolette-cut diamonds dangle in the tiara of Empress Joséphine. A briolette is a style of gemstone cut. It is an elongated, mostly symmetrical along the main axel, pear shape covered with angular facets usually with a pointed end and no girdle. [1] It is often drilled to hang as a bead.