How is the level of tourmaline divided?
How is the level of tourmaline divided, and what is the classification of tourmaline? The grading standard for the division of tourmaline in the gem world is the same as the 4C rating method for diamonds, which are evaluated from color, clarity, cut and weight. First, the color It consists of three items, color, hue and saturation. The high-quality tourmaline has a level of tourmaline that is moderately high. Too deep and too light is not the best. Second, the clarity Refers to the stone, cleavage, cracks, inclusions, etc. in the tourmaline. Of course, the higher the clarity, the higher the value. Some of the tourmaline fibers are neatly arranged in the same direction, making it a cat's eye effect. This is also a special appearance. The evaluation of clarity is not applicable in the tour of the tourmaline. Third, cut Since tourmaline is a gemstone with high transparency and no inclusions, it is necessary to adopt a multi-angle cutting method to try to show the gems themselves. A well-cut tourmaline can fully express the color and luster of the tourmaline. It is the most important of the tourmaline grades. Fourth, the weight As with all gems, the greater the weight, the greater the value, and the weight of the tourmaline gemstone is generally measured in carats (ct). T-Shirt Fabric,Stretch Shirt Fabric,Fashion Shirt Fabric,Check Design Fabric Shaoxing Cornfield Textile Trading Co,.Ltd , https://www.cornfieldtextile.com