1, Guizhou Gold and Jewelry Testing Center
Address: 3rd Floor, Building 12, Hai Yin Long Yuan Plaza, Beijing Road, Yunyan District, Guiyang.
2. Guizhou Gold and Jewelry Testing Center
Address: No.79, Fushui North Road, Yunyan District, Guiyang.
3. Guizhou Gold and Jewelry Trading Center
Address: No.33, Changling South Road, High-tech Zone, Guiyang.
Extended data:
Identification method of jadeite:
1, the luster of jade
Emerald has a glass luster, the reflective surface is as bright and sharp as glass, and the reflective points are concentrated and not divergent. Jade with high transparency and strong glass luster is a popular fine jade variety. The jadeite of goods B and C is not bright, but as bright as oil.
2. Hardness of jadeite
Jade has a high hardness, which makes it easy to cut glass, and has a high toughness and will not be easily broken. After artificial treatment, the hardness of jadeite will be reduced, which is not as high as that of jadeite of A goods. 3. emerald green
Emerald, also known as "flying wing", is one of the identification methods of jadeite, especially when the particles that make up jadeite are coarse. If the particles that make up jadeite are very small, you can rarely see "emerald", such as the old pit glass jadeite, which is difficult to see with the naked eye. After artificial treatment, the "flying wing" can't be seen in the jade.
4. Jade white cotton
White cotton refers to the translucent and slightly transparent white material with patches, strips, filaments and ripples inside jadeite. Although the existence of white cotton affects the beauty of jadeite more or less, it is also one of the identification methods of jadeite, and the white cotton of jadeite also reflects the natural attributes to some extent. If what you see is pure jade, without any impurities, and the price is relatively low, it must be artificially treated, so be careful.
5. The color origin of jadeite
Color root is a sign to judge the authenticity of jadeite green in jadeite identification. On all-green jade ornaments, when you see a little bit or a thin, slightly dark green, it is called a color root. The high-grade super jade green is very uniform, with no depth and no color roots.