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jewelry wholesale terms and conditions Diamond cutting is divided into 5 types, including ideal cutting, very easy to cut, easy to cut, general cutting, and different cutting. Princess type, olive type, oval shape.
This diamonds have a slogan of brainwashing, I believe everyone has heard, so how much do we know about diamonds? What kind of diamond cutting? Today we will understand the diamond Cut the relevant news!
Hit of diamond cutting
Excel 1: The standard of only 3%of the first -class high -quality diamonds can be achieved, This cut makes the diamond reflect almost all the light that enters the diamond, an elegant and outstanding cut.
is very easy to cut. VeryGood: It represents about 15%of diamond cutting. It can reflect the light of diamonds and cut standards, but the price is slightly higher.
This is easy to cut (good): represent about 25%of diamond cutting. It is the diamond reflection that most of the diamonds enter the internal light, which is much cheaper than the VG class.
The general cutting and general cut (FAIR): It represents a diamond cut with a roughness of 35%, and it is still high -quality diamonds, but the light reflected by the general cutting diamonds is not as good as G -Class cutting.
The differential cutting (POOR): This contains all diamonds that do not meet the standard of general cutting. The bottom is out.
9 famous diamond cutting
standard round diamond type cut ()
/Splendid
1919 Antwerp cutter () The cutting style of a round diamond was drawn through optical calculations, which can reflect the fire color and gloss. There are 58 face -to -face faces, small noodles, and sharp bottoms on the upper waist and lower waist, and there is no sharp bottom for small diamonds below 25 points. A total of 57 aspects have laid the foundation of standard round diamond -type cutting. But a four -pointed rough, cutting the weight the most at this ratio. So this can only be used as a reference. The cutting ratio of Toccivusky is: Average waist circumference diameter: 100%countertop: 53.0%crown height: 16.2%pavilion height: 43.1%crown angle: 34 degrees and 30 minutes Pavilion angle: 40 degrees 45 minutes. The proportion lays the foundation for the ideal cut of diamonds. The cutting ratio of different regions is different. The Tosovsky cutting is also called the United States, and other German -oriented, European crafts, etc.
The elliptical bright type ()
The shape: oval
nThe tie effect. Its rough retention rate can reach 50%to 60%, which is suitable for diamond rough with long octopus. Because it can retain the high quality of diamonds, it is mostly used for many re -cut ancient diamonds. The outline of the shape requires the shoulder symmetry.
see -shaped cut ()
shape: pear -shaped
The pear -shaped cuts were very popular in Louis XIV, France, and nearly 20%of the famous diamonds in history used this kind of cut, including the world's largest diamonds: Cullinan1. Such cutting is suitable for diamond rough with damage or defects on the corners of one end. Pay attention to the protection of the sharp corners when inlaid. The outline of the shape is required: the wings on both sides are symmetrical, and there is no defect of the sharp corners.
r
shape:
n is also translated as a horse -shaped cut or a boat -shaped cut. The ends of this cut diamonds are sharp -cut, shaped like a nucleus, hence the name. There is a collar effect.
This rough retention rate is low, and its characteristics are at the sharp corners at the end of the two ends. Essence Pay attention to the protection of sharp corners when inlay.
The appearance requirements: sharp angle symmetry, no defects
square cutting ()
Cutting: Bright/splendid or mixed
square cutting has a square or rectangular shape, usually 76 face -to -face. But there are also 61, 101 aspects or 144 face -to -face. Among them, 101 face -to -face square bright cuts are cut for the registered patent of E.F.D. Diamond Company, that is, the princess.
The brightness and flicker generated by the sharp corners and pavilions reduced the visibility of the parcel, and also slightly "improved" the color level of the diamond, and the same weight square -cut diamond and round shape Compared with cutting diamonds, the shape seems to be about 15%larger.
The square shape is suitable for seamless inlaids used for tightly arranged diamonds. This is what other shapes of diamonds cannot be done, but the sharp corners need to be protected when inlay.
The heart -shaped cut ()
The heart shape
The diamond shape is composed of two wing petals, the grooves in the middle, and the sharp corners at the bottom, like a heart shape.
The heart -shaped cutting diamonds is shallow, suitable for irregular shapes and flat diamond rough, the parcel in the original groove can be removed to improve diamond purity, but This cutting rough has a low retention rate.
The appearance evaluation of heart -shaped diamonds mainly focuses on both wing flap symmetrical and full shape.
The emerald cutting ()
Oxicity: rectangular
The derivative of the work, all the cut surfaces of the cut surface are parallel or perpendicular to the diamond outer waist, the shape is rectangular, the pavilion and the crown are flat, and the bottom tip is harvested. Because it is commonly used for the processing of gem emeralds, it is named.
The diamond -cut diamonds with emeralds are difficult to cover the wrap, which is suitable for diamond rough with high clarity, rectangular, slightly damaged or wrapped in the corner, and its rough retention rate can reach 60 %To 70%high.
The outline of the shape: Pay attention to the size and line of the four corners and the lines must be strictly parallel.
Reiden cut ()
shape: rectangle
In 1977, the craftsman hoped that the elegant appearance and roundness of the comprehensive emeralds cut the brightness of the round work, and created this cut.
radiant has a rectangular shape and a four -corner. It takes into account the retention rate and easy -to -match shape of the emerald's high cutting. It also has an excellent light performance like a round and splendid cut.
radiant cutting is suitable for slightly rectangular. The four corners are rough with damage and flaws. The retention rate of rough stones is high.
This should be fixed in the form of four -claw inlaid to fix four parts of the cutting corners to ensure the firm and safe inlaid.
The cushion type ()
shape: rectangular rounded corner
n, also known as "pillow" pillowcut.
has 58 cutting surfaces of the cushion type, which is the predecessor of the bright type. In comparison: its countertop is small, other cut surfaces are larger, the diamond waist is thin, the overall is flat, and the bottom tip is processed into a small cut surface, and a "empty hole" can be seen from the interior of the diamond on the table.
The cushion type cutting was circulated in the 19th to 20th century. It is a cutting method formed by many development and improvement. Before that, the diamonds have been modified several times. Since 1830, diamonds have some diamonds. For nearly a century, we only use this cut, including many world -famous diamonds, such as: Hope, Regent, etc.
Clash -cut diamonds compared to modern brilliant cutting.
Mi young people will buy diamond rings before they get married, but many people don't know much about diamonds. The above is the relevant information about diamond cutting. I hope to help everyone better understand the diamond.