See jade certificate identification authentic licensed

In fact, one of the most effective methods for authenticating authenticity is to allow sales merchants to issue identification certificates from state-recognized agencies. The accreditation certificate of the national authoritative organization is very accurate for the identification of jadeite. It should be said that when there are few “missing goods”, even if there is a problem, compensation can be pursued.

The "technical content" required here is - how do you understand the various results on the certificate?

The Emerald Certificate issued by the national authority has one item in its identification. If it is a natural A product, the result is only the word “Jade”, and the words “A cargo” and “natural” will not be marked.

Only natural A products will issue a certificate that results in "Jade";

If B is a jadeite, an identification result in the certificate will indicate "Jade (Processing)", "Jade (Gum)", "Jade (B)" or "Jade (Optimized)";

C. Emerald will be marked "Jade (Dyeing)";

In the case of the “certified jade” in the certification certificate results, D’s cargo jadeite will not appear “jadeite”. What substitutes are used to indicate the names of such substitutes—for example, “artificial glass”, “dyed quartzite”, and “diamond "," "Malay jade" and so on.

The certificate should correspond one by one, that is, a piece of a certificate, and the certificate should have a picture and weight of the item.

Although some things come from a piece of raw material, the appearance looks very similar, but the jade jewelry is not exactly the same. One thing to do a certificate does not prove the quality of the entire batch of products - for the sake of cost savings, some businesses only have a certificate as a sample, and the photographs are similar to the goods in kind - this does not determine what they are selling. This batch of goods is all natural. This is not in line with national regulations.

There should also be some basic physical, chemical and optical characteristics of jadeite on the certificate.

Refractive index: 1.66 (This is a unique index of refraction of jade that is unique to other gems);

Density: 3.33 (also a distinguishing feature of jade and other precious stones);

Enlargement detection: fiber interweaving structure (this is a unique structure of jadeite);

Absorption spectrum: 437nm absorption line (absorption spectrum unique to jadeite);

Color filter inspection: no reaction (some dyed jade will turn red under the filter);

Light: aggregates (Jade is a micro mineral aggregate);

Fluorescence: None (some B products will have a fluorescent reaction after injection);

Appearance characteristics: glass luster (some B goods will show a waxy luster).

Finally, there must be signatures of the inspectors, and the most important point is that the certificates must have stencils or anti-counterfeiting marks.