Emerald collection vigilance on B cargo and C cargo

This thought that "Liao leakage" has collected less than the market price of jade, but it is likely to encounter fakes. In order to increase its value, some merchants commonly use artificially processed methods to improve the color and transparency of jadeite, because there is little difference in appearance from natural jadeite, so be wary of buying it. The State Bureau of Technical Supervision issued three types of technical standards, namely A, B, and C, based on the jadeite jewelry currently on the market:

A goods natural jade raw materials of the finished product. Its texture and color have not been artificially transformed to maintain its natural essence. This type of jewelry will become even more moist and bright as you wear it longer. If the sign is "Jade bracelet", it must be natural or A cargo.

B. The goods are processed by artificial chemistry and physical methods on the dirty, gray, dry, green or dark low-grade jade materials or semi-finished products, which can increase its transparency, the appearance is better, and it is transparent and bright, and at the same time can make the original Some colors look better. This artificially strong corrosion treatment destroys the original structure of jadeite and causes it to become loose. Therefore, it must be filled with organic glue to be cemented. This changed the original optical and physical properties of Jadeite and lost its true value.

C goods are based on the processing of B goods and then artificially colorless or light-colored jade dyed into bright beautiful colors. The colors added are red or green.

This standard does not represent the grade of jadeite. For B and C goods, the national standard has clearly stipulated that the name of the goods to be sold must be marked with "emerald optimization (processing)", otherwise it is a fraudulent act of filling the truth. If you are not sure whether the selected jadeite goods are A goods, the most reliable method is still to get a professional identification agency to identify.