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The first major development in diamond cutting came with the "Point Cut" during the later half of the 14th century: the Point Cut follows the natural shape of an octahedral rough diamond crystal, [2] eliminating some waste in the cutting process. Diamond cutting, as well as overall processing, is concentrated in a few cities around the world ...
Instead of a culet, step-cut stones have a keel running the length of the pavilion terminus. Like other fancy shaped diamonds, emerald cut diamonds can come in a variety of length to width ratios. The most popular and classic outline of emerald cut diamonds are close a value of 1.5. The Asscher cut, a square modified emerald cut, is also popular.
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.
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]
Then a burr of the proper size is used to cut what is known as a "bearing", which is a notch that corresponds to the angles of the stone. The burr most often used is called a "hart bur", and is angled and sized for the job of setting diamonds. The bearing is cut equally into all of the prongs and at the same height above the base.
Cushion-cut diamonds feature a combination of shapes. According to Landau, a cushion-cut diamond resembles a pillow with its square or rectangular shape and rounded corners. This shape offers a ...
Diamonds became popular as ornaments in jewelry in the 1400s and the different techniques and styles of diamond cuts were gradually developed over many years. [4] Lodewyk van Bercken was a Flemish diamond polisher who invented the scaif. This ingenious polishing wheel enabled him to quickly cut facets into diamonds with precision.
Diamond cutting is the art and science of creating a gem-quality diamond out of mined rough. The cut of a diamond describes the manner in which a diamond has been shaped and polished from its beginning form as a rough stone to its final gem proportions. The cut of a diamond describes the quality of workmanship and the angles to which a diamond ...