The value of jade is mainly measured in terms of its color, texture, transparency and purity. Experts at the Jade Research Center said that when collecting, you should choose pure natural products. You should pay attention to the "species", that is, the texture and structure of the jadeite. The finer the texture, the more crystal clear the jade; the "color" refers to the color and the color is uniform. Color is positive, strong, and green is the top grade; "water head", that is, transparency, lustrous crystal clear, clear and clear is the top grade; secondly, we must consider the engraving, subject matter and other factors, the more artistic value is higher. At present, the types of jadeites operated on the market are classified according to the true and false grades. There are mainly the following three categories: A goods, which are both natural texture and natural color; B goods, there will be black spots commonly known as "dirty" jade, soaked and corroded with strong acid. Remove "dirty" and "cotton", increase transparency, and dye through chemicals. C goods, completely artificial coloring. Only A cargo jade has value preservation. As for medium and low grade jadeite, the market has a weak bearing capacity, and its value preservation and appreciation rate are very limited. It can only be worn as an ordinary jewelry. Of course, in the past few years, due to the small amount of jade on the market, many jewellery appraisers have not been particularly mature in the identification of jade, and there have been cases where B goods were identified as A goods, and even D goods were identified as A goods. In the past few years, with the increasing proportion of jade in the jewelry market, the accuracy of the jade identification of the authoritative jewelry appraisal office has been very high, and the probability of misjudgement is extremely high, but on the other hand, with market demand The number of jewellery appraisal institutions is increasing, and there are more and more professional jewellery appraisal institutions. For such appraisal certificates, consumers should be more careful. To this end, the jewelry appraisalist of Guangzhou Longsheng International Exhibition Service Co., Ltd. said: Although the current economic conditions allow everyone to buy some expensive jade jewelry, but everyone still has to open their eyes, even in large shopping malls and specialty stores, jade pseudo Reporting grade is also a common thing, I hope that the majority of collectors can be cautious to buy. Geometrical Pattern Fabric,Nylon Polyester Spandex Lace,Nylon Polyester Spandex Lace Fabric,Nylon Polyester Spandex Panel Lace SHAOXING LANGDENG IMP&EXP CO.,LTD , https://www.ldfabric.com