First, the better the workmanship, the better the quality of jade products. As the saying goes, "Good materials make good workers". No matter what kind of jade, good workmanship is bound to be good material Good workmanship is generally hand-carved, the lines are smooth and soft, and the details are carefully carved. For example, Guanyin's bun, fish scales and other details must be fine, and the "pretty color" carving is carried out according to the different colors of the material, which is lifelike; The jade Guanyin pendant as shown in the figure below is carved into lotus leaves and other parts by a pretty carving process, with exquisite details:

Second, the more beautiful, beautiful and flawless jade looks better, and the finer the texture, the better. No matter what kind of jade, as an ornament, it must look good, and no matter how rare it is, it will not be too good; And the fewer flaws, the better, and no flaws is the best; The finer the particles, the better, and the closer to the gem-like single crystal, the better the effect. Whether it is nephrite or jadeite, this is the same. The following picture is the best picture of Hetian jade, perfect, delicate and moist:

Third, no matter what kind of jade, the rarer the color, the brighter and more precious it is. For example, agate is red, and blue agate and pure natural green agate are also very precious varieties. Emeralds are expensive, and there are three colors: turquoise, violet and Hong Fei. Hetian jade values sheep fat white, and so on. Of course, the best color of jade is pure natural jade, and its natural beauty has become a rare stone product. This is the most precious product, as shown in the following figure, and it is a famous agate product:

Specific to each different jade product, there are different quality appraisal standards. For example, jade pays attention to the integration of "planting water and color", that is, the integration of permeability, delicate texture, workmanship and color; Hetian jade pays attention to moisture, color, workmanship, delicate texture and so on.

Then, the authentication method of the jade authentication certificate is to query the detection institution, and the steps are as follows:

First, check the testing agency official website and log in;

2. Find the check window of the test certificate, and enter the certificate number, mass grams/verification code and other information according to the prompt;

Third, click Query and wait for the audit result. There are several general findings:

1. The reexamination was successful, and the objects, certificates and reexamination results were consistent, indicating that the certificates were true;

2. The audit failed, indicating that the data is being uploaded, which may be a new certificate, and the data was not uploaded successfully. Generally, you can review it in a week or so;

3. Re-examination failed, and the data could not be found after a long time, indicating that this certificate is false;

4. Although the re-examination was successful, the physical object, certificate and re-examination results were inconsistent, so the certificate was also false;

5. Although the re-inspection was successful, the test results were not authentic, such as jadeite (artificially optimized), or remarks: the cause of color was uncertain. It shows that although the certificate is true, this jade is fake, or it is uncertain whether this jade is optimized.

In the actual inquiry process, you will encounter various problems, and the specific situation can be further verified by calling the testing agency.