What factors are affected by the diamond cut?
When it comes to the appearance of finished diamonds, we often use words such as “flashingâ€, “fireâ€, “brightness†and “pattern†to be closely related to diamond cutting. What factors are affected by diamond cutting? GIA's current cut grading system is currently only available for round brilliant diamonds. For the shaped diamonds, it is still not possible to cut the grade. Given that the most popular diamonds on the market today are round brilliant diamonds, diamond cuts can be further understood through an understanding of the current grading system. GIA diamond cut grade The GIA Cut Grading System divides the cut into five grades: Excellent (EX), Excellent (VG), Good (G), Acceptable (F) and Poor (P). It evaluates the cutting of round brilliant diamonds based on seven elements—brightness, fire, sparkle, scale, robustness, polish, and symmetry. With this comprehensive set of criteria, the GIA certificate is one of the reasons why it is a very important tool to help you pick out dazzling diamonds. In China's diamond grading national standard, the cutting work is also divided into these five levels, and the symmetry level and the polishing level are collectively referred to as the degree of modification. Proportion: The diamond ratio refers to the size and angle of the polished diamond facets and the relationship between them. The diamond's cutting ratio is perfect, and it is closely related to its desktop size, crown angle and bottom angle. It is these factors that together create the beauty of this diamond in front of us. Polishing: Refers to the light that produces diffuse reflection on the uneven surface of the diamond, describing the smoothness of the diamond surface. Polishing is characterized by being located on the surface without significant infiltration using a 10X magnifying glass. Polishing is divided into EX, VG, F, and P on the classification standard. When the degree of polishing is severe, not only will the brightness of the diamond be greatly reduced, but it will also affect the transparency of the diamond. The quality of the polishing is mainly related to the diamond cutting process and the skill and skill of the cutter. Symmetry: The horizontal symmetry of each part obtained after the diamond is cut and polished around the center point, that is, the arrangement of the cut surfaces and the mutual angle. As with the ratio, it is an important indicator of evaluation 2. If the turnover and proportion of a diamond are excellent, symmetrical cutting will make the flash and fire more intense. The evaluation of symmetry in foreign certificates is more detailed. From high to low, there are ID, EX, VG, F, and P. For round brilliant diamonds, the ideal cut makes the light achieve total internal reflection in the diamond, and the diamond has a blazing fire, which is what we usually call "flash." If the diamond pavilion is cut too lightly, the light will appear from the bottom. In severe cases, there will be a "fisheye diamond". There is a circle of white on the diamond table, which is very dull. When the diamond pavilion is cut too far, the light will appear from the pavilion. In severe cases, it will form a "black diamond" (also known as the nail head phenomenon), which will greatly affect the value of the diamond. However, the beauty of diamonds is not beautiful, and it is not all calculated by the certificate. If you choose the diamond you like, no certificate can replace your heart. Shandong EMF New Material Technology Co., Ltd , https://www.earthingsilver.com