Jade is a very broad concept, including jadeite, hetian jade, timely jade, agate, jade and garnet jade. Each price is different, and the price of the same different quality is different. Emerald A refers to the jadeite whose raw materials have not been artificially treated except for cutting, shaping, grinding and polishing, that is, natural jadeite. Jade A has little to do with the value of jade, and it is a statement of relatively processed B goods and C goods.
Jade varieties: A, B, C, B+C, and imitations are collectively called D;
A goods can be divided into green, white, yellow, red, purple, black, two colors, three colors, floating flowers and so on. ;
According to the texture, it can be divided into glass seed, ice seed, bean seed, waxy seed, Gan Qing, white background green and so on.
If you want to distinguish the above categories, you need to attend training courses and see a wealth of specimens to master them.
For jade consumers, the consumption of jade jewelry is not about where to buy it, nor about the price. The key is that they like it and it is cost-effective. When you see the certificate, you should go to Baidu to search for "organization name+suspected illegal" to see if there is any negative news, while others ask the seller to issue another certificate, because such negative news may lead to distrust of the quality and price of the product itself. When purchasing jade products, you can pay attention to the following aspects:
1, according to your personal preferences and economic affordability, buy your own satisfactory baby at the same price.
The size and style should suit you.
3. General jadeite evaluation should consider: the more positive the color, the better (for example, green is positive, green is not gray), the more transparent the better, the more delicate the structure, the finer the carving, and no cracks.
4. shop around; Shopping around
5. Authoritative inspection certificate (CAL, CMA and CNAS are indispensable)
6. The website of testing institutions is updated quickly and rich in content, which not only exists for verification, but also reflects its investment and authority.
7, choose a good baby, don't rush to buy, send it to netizens to help you.
Self-identification skills of jadeite A and B:
1, observe the light and see if there is a faint yellow tone. If there is, it is basically determined as A; If there is no white color, it is basically determined to be B or B+C (except for the green species with white background, the rubber of B goods will turn yellow after a long time). 2. For bracelets without cracks, knocking with other non-bracelet jade will make a tinkling sound, while the sound of B goods is not so crisp. You can compare it with the confirmed A bracelet.
Principle of whitening of B goods: B goods are made by soaking natural jadeite raw materials in strong acid and alkali for several months, and then vacuumizing and injecting glue. This process will make the yellow iron and manganese oxides in natural jade particles react, so the B goods will appear unnatural pallor in the finished product.
It is absolutely not recommended to buy expensive jewelry in the tourism market or when traveling. Experience shows that 90% is either expensive or fake, especially in Yunnan where there are tour guides or tourist signs for group tours.