Antwerp, Belgium-Exquisite Diamond Processing Center
? Antwerp is a world-famous diamond processing center, and has become the world's "diamond capital" since the middle of15th century. 80% of the residents in this city are engaged in diamond and related industries, and most of the processed diamonds are used for export. Due to the duty-free import and export of diamonds in Antwerp, diamond merchants from all over the world have come to trade, making Antwerp always occupy the throne of the world's largest diamond center. Antwerp has the best diamond polisher in the world. They adopted the "Antwerp cutting" technology, which enjoys a reputation of five centuries, to cut out the shapes of 33 upper faces and 24 lower faces, making the diamond more perfect and fully embodying the crystal brightness of the diamond. It is said that seven of the 10 diamonds in the world are cut by Antwerp craftsmen, so the "Antwerp cutting" technology has become the universal standard all over the world.
Mumbai, India-Small Diamond Processing Center
? India has a long history of diamond cutting, but its modern diamond processing developed relatively late. India's diamond processing output value from 65438 to 0966 only accounts for 1.9% of the world. In the 1980s, India's modern diamond processing has achieved rapid development, and by 1992, its diamond processing output value has accounted for 35%-40% of the world. However, due to semi-automatic processing, the labor cost is low, and the polished diamond has poor effect, thick waist and poor symmetry, which affects the fire color. Therefore, the diamonds processed are mainly small diamonds, generally within 20 minutes. ?
New york, USA-Large Particle Diamond Processing Center
? New york, USA is a world-famous diamond cutting center, where many famous jewelers gather. The diamond processing center in new york has more than 400 skilled cutters and about 2,000 diamond dealers. New york Diamond Center has few cutters and grinders, small processing area and exquisite diamond processing. However, due to the high labor cost, the salary is calculated at tens of dollars per hour, and the cutting cost is high, so it mainly processes large diamonds above 1 carat, and the difficulty and accuracy of diamond cutting are world-famous. American-cut round diamonds have 58 faces, the sharp bottom is polished into a transparent octagon, and the waist is polished into a transparent facet.
Tel Aviv-Exquisite colored diamond Processing Center
? Tel Aviv has a long history of diamond processing, and it is also one of the most famous diamond cutting and grinding places in contemporary times. Especially famous for fancy cutting, 40% of round diamonds and 70% of fancy diamonds in the global diamond and jewelry market are cut and ground here, 10 points to 50 points. However, the processing level is very uneven, and traditional tools are often used for polishing. Some diamonds have rough waist edge, poor symmetry, irregular pavilion shadow and deep and shallow bottom angle, which affects the fire color of diamonds to some extent.
? Mosaic method of diamond
? Pointed setting
? Holding the diamond tightly with a long metal claw (column) has the greatest advantage that the metal rarely blocks the diamond, which clearly presents the beauty of the diamond, which is conducive to the incidence and reflection of light at different angles and makes the diamond look bigger and brighter. At present, it has become a popular single diamond jewelry style in the market. Pin positioning can usually be divided into six-pin positioning, four-pin positioning and three-pin positioning. Six-claw crowns are popular in wedding rings now. Princess diamonds can be inlaid with four claws, and large diamonds generally adopt the form of two small claws combined into one claw. Paw inlay requires uniform size and spacing of paws, and the diamond table top is not inclined horizontally.
? electroplate
? The diamond below the waist is sealed in a metal holder (frame) with a metal edge, and the firmness of precious metal is used to prevent the diamond from falling off. This is the most firm and traditional setting method, which shows the brilliance, restrained brilliance and peaceful and dignified temperament of diamonds. Watch carefully when buying a diamond suit. The bottom tip of the diamond should not be exposed from the bracket, otherwise it will damage the skin or scratch the diamond. ?
? Card mosaic
? Also known as inlay, it uses the tension of metal to fix the waist or the part between the waist and the bottom tip of a diamond, which is a more fashionable style at present. The exposure of the diamond is further than that of the claw inlay, and it shines brightly.
? Orbit mosaic
? Also known as clip setting and wall setting, it is a method of opening a groove on the precious metal bracket and then clamping the diamond into the groove. The orbital inlay method is suitable for diamonds with the same caliber. Diamonds are continuously embedded in the metal track one by one, and the diamonds are supported by the metal on both sides. This inlay method can make the surface of the ornament look smooth.
? Nail inlay
? On the edge of the inlaid metal material, use a tool to shovel out a few small nails to fix the diamond. There is no metal or claw to fix the diamond on the surface, and the closely arranged diamonds are actually embedded in the metal tenons and grooves. Because it is not surrounded by metal, diamonds can penetrate and reflect more light, highlighting the gorgeous light of diamond ornaments.