With the jewels of various precious jewellery such as jewellery and jade, various real and fake jewels have appeared on the market, making it difficult to recognize the authenticity. In order to prevent the purchase of fake jewelry or jade. To this end, Xiaobian consulted several experts and combined with years of experience to summarize and share the skills of identifying jade jewelry. Surface coating A colorless gemstone or a lighter gemstone is soaked in a colored solution to precipitate a pigment on the surface of the gemstone to change the color of the gem itself. Experts believe that this treatment method was mainly used on porous and multi-cracked jade. Now it is mainly used in crystal fraud, that is, the colorless or light-colored crystal is soaked in yellow or purple solution and resembled yellow crystal and amethyst. In addition, the market also uses a purple-red pen to paint the imitation of violet on the surface of the colorless bracelet. This method of identification is relatively simple, as long as you pay attention, you will not let it go. Barrier method Colorless gemstones or lighter colored gemstones are colored with colored ropes, mainly for citrine, amethyst, aquamarine, topaz and the like. Experts say that strictly speaking, this is not a treatment method, because it does not deal with the gem itself, but this method is easy for the first-time entrant to miss the price judgment. Fish eye mixing method Mix other cheaper gemstones such as glass, synthetic gemstones, and treated gemstones into a chain of beads. Such as citrine mixed glass, natural crystal mixed with synthetic crystal, tourmaline mixed crystal, jade mixed with jade and so on. Polishing powder coloring More green polishing powder remains on the inner and outer surfaces of the colorless or light jade bracelet to change the color of the bracelet itself. But we found that this method was popular in the market a few years ago, it was cold for a while, and now it is on fire again. It has been found that this method is used for the imitation of oil and green jade. In the inspection, special attention should be paid to the jade bracelet with uniform color and blue color. Coating method The coating method in the jewelry market in Guangzhou is mainly used in the following aspects: 1. Garnet coating method is coated on the surface of red garnet with a metallic luster film. The light transmission is red-red. The industry is called “red blood stoneâ€. 2. The crystal coating method is used to plate the metal luster film on the surface of the crystal cluster for "Rainbow Stone" sales. 3. Amber coating A reddish film is applied to the bottom of the yellow amber to improve the appearance of the amber. Irradiation method Mainly used in topaz, lemon yellow crystal, colored diamonds and black diamonds, the gemstones treated by this method are difficult to identify by conventional detection methods. Jade bracelet coating method In addition to traditional treatment methods such as bleaching, injection molding, dyeing, and re-creation, the treatment of jade has recently had a new trend, namely the jade bracelet coating method. In addition, it is necessary to point out that the traditional "dressing" jade is mainly applied to the ring surface. This method is mainly applied to the bracelet, and the surface of a part of the bracelet is coated. The film is colorless or partially colorless and partially colored. The colored part is not a common dye but a fine-grained green jade material. Because this method is not sour bubble, the dye used is also natural, so it is extremely deceptive. Its main purpose is to fill the gaps in the bracelet or change the color of the bracelet. The earliest appearance of this bracelet has more bubbles on the surface, which is more sturdy and has a poor gloss. Recently, this treatment method has been improved, and the surface is basically difficult to find bubbles, and the gloss is also good. Of course, this method is easily identified by conventional detection methods. Soft Bathrobe,Comfortable Bathrobe,Soft Hotel Bathrobe,Luxury Bathrobes HANGZHOU YINTEX CO.,LTD , https://www.psptex.com
September 09, 2021