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ebay usa wholesale jewelry Cut diamond
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wholesale authentic african jewelry Diamond cutting
The earliest diamonds that appeared on the ring are rough stones in the shape of natural octagonal shape. From about the fourteenth century, people have processed the diamonds for a certain amount of processing. Tips to grind the tip; the countertop cutting appeared on the fifteenth century. By the 16th century, rose cutting began to appear. This cut style continued until the nineteenth century. The high progress of the bright cut -type cutting diamond cutting makes the diamond have better light and fire.
1914 Antwerp's diamond cutting sample Torfuski seal the ratio of the refractive index and color scatter cutting of the diamond. It is still based on the proportion of Togovs calculated. However, diamond cutting is a product of combining art and technology. It requires long -term experience accumulation and talent training. Therefore, diamond cutting is mainly concentrated in those traditional cutting centers. At present, there are four major cutting centers in the world.
Monomy in India
The New York n in the United States n Belgium's Antwerp N Israel's Tel Aviv
South Africa is also developing into major diamond processing and cutting centers. Each dazzling diamond needs to be carefully cut and processed in order to release the deserved luster, which is also the perfect combination of man and nature. However, the common saying in the industry "Russian workers", "Belgian workers", and "Indian workers" have no direct source relationship with the above cutting centers, that is, "Russian workers" diamonds do not necessarily refer to this diamond. The processing of processing implies that the processing of the diamond is perfect (the relevant content will be introduced in the 4C evaluation part).
The cutting process:
one drill blank looks inconspicuous. It must be carefully cut and processed before it will become the flash of shining Diamond. Therefore, the diamond car worker directly affects the value of diamonds. See the following description for details. The most ideal cutting effect is of course to maintain the maximum weight of the diamond, minimize the flaws as much as possible, and fully show the beauty of the diamond to make the diamond light. The general cutting process includes the following steps:
labeled (threading): This is the first step of diamond cutting. People have rich experience and proficient in processing technology. The ultimate goal is to create the largest, cleanest and most perfect diamonds to reflect the value of diamonds as high as possible. The threading staff must pay attention to two points: that is, try to maintain the maximum weight and minimize the internal content. The threadr uses a magnifying glass to study the structure of the drilling billet. If it is a large particle diamond, this work may take several months, and it takes several minutes to the ordinary drill billet. However, no matter how small the drilling billet is small, each diamond must be checked in detail to make the correct judgment.
The thoroughs use Indian ink to mark on the drill billet, showing that the drill billet should be divided along this line. Usually, as much as possible along the natural texture direction of diamonds.
The segmentation rough: including cutting and sawing cutting.
This chopping: The splitter puts the diamond billet of the schemes on the suit, and then cuts a dental with another diamond, and then puts the square knife on the concave. On the marks, knock on the split knife with a hand with a suitable force, the diamond will be split in half or more along the texture direction.
Saw cutting: Most diamonds are not suitable for splitting. At this time, you need to cut it with a saw. Because only diamonds can cut the diamond, the saw tablet is a diamond powder and lubricant coated on the edge Phosphorus and copper cyclone. Diamonds are fixed on the clip, and the diamond can be seen at a high speed to see the diamond. Modern laser technology introduces diamond cutting, which greatly improves the processing efficiency of drilling.
For molding: The diamonds that are sawn or split are sent to the circle to play round and forming, that is, the diamonds are made into a round, heart -shaped, oval, sharp, grandmother, and grandmother. Common cutting flowers such as green shapes, or other special shapes. Because diamonds are the hardest natural substances that humans have recognized so far, only diamonds can polish diamonds, and the hardness of the diamonds is slightly different. Therefore, it is necessary to grasp the basic form of diamonds with experience when grinding: trilogy, eight -facial body, duodang body and crystal characteristics. The general method is to rotate the drill blank high -speed lathe, and then use the diamond on the other arm to round the rotating drill billet.
Pliles, polishing: On a cast iron disc with diamond powder and lubricant, the car grinds all the petals (aspect) to make the diamond emit a seductive glory. The grinding process is usually to make 8 large noodles at the bottom, and then make 16 aspects. Add a sharp bottom, a total of 25 aspects, the correct change is correct, and thus extend the triangular noodles, the kite face and waist face, a total of 33 aspects. Such a round diamonds have a total of 58 aspects. There are 57 face -to -face if there is no bottom face. Not every drill billet must go through all five processes. This depends on the characteristics of the drill billet and the goals to be achieved. Such as processing grandmother's green diamonds, there is no need to go through the "round" process. However, there are two processes for any diamond blank. This is "scratching" and "lobe, polishing". The location and angle of the petal -cut diamond -cut diamonds are accurately calculated, making the diamond the maximum glory. It can be seen that cutting the world's hardest gem -diamonds not only require advanced equipment, but also need to cut the spirit of all diamonds from rich experience, high sense of responsibility, and full attention. A diamond in the jewelry counter may be left through many countries. After several people, it becomes a diamond jewelry through processing, inlaid, and production.
With the advancement of science and technology, the introduction of laser technology and electronic computer descriptions can make the design and cutting of drill billets more accurate.
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