When buying jadeite, are you still relying on whether it’s “cool” to determine its authenticity? Why not try these new methods?

As the saying goes, "A person takes care of jade for three years, and jade takes care of a person for a lifetime", so the elderly in the family often prepare a piece of jade product for their descendants.

And they were asked not to take it off at any time or place, so that they could live in peace for the rest of their lives. After all, jade is so important to the Chinese!

But what treasure lovers may not know is that although they say "jade", most of the time they are referring to jadeite, which is known as the "king of jade".

It is precisely because of the Chinese people's love for jade that there have long been many unscrupulous traders who try to pass off jade of varying quality as genuine jade.

The determination of jade quality and even authenticity relies heavily on the use of professional instruments or relatively rich experience - such as the saying circulated in the industry: "one look, two touch, three weigh, four listen, five measure, six smell, and seven lick."

I believe that you will feel confused just by listening to it, let alone the actual operation.

Jade has a very good heat conduction effect, so many treasure friends have learned the experience and method: "When choosing, put it on your face or on the back of your hand, you will feel a noticeable coolness (after a long time, it will be the same as body temperature)."

But as unscrupulous businessmen become more and more experienced in counterfeiting, this method may no longer be sufficient.

Therefore, before teaching you more identification techniques today, you must first clarify the three grades of jade, namely "A-grade jade", "B-grade jade" and "C-grade jade".

1. Grade A Jadeite

The so-called A-grade jade refers to natural jade that has not undergone subsequent artificial processing, which is commonly known as the "real thing."

However, since the quality of jade is also affected by many factors such as water quality, light transmittance, and craftsmanship, A-grade jade cannot fully represent the quality of the collection.

2. B-grade jadeite

The so-called B-grade jadeite, although also natural jadeite, has some inherent flaws, which leads unscrupulous merchants to choose to process it with processes such as acid washing and filling with glue. It is a typical fake product that is sold as high-quality product!

Not only that, the various chemical fillers in B-grade jade will gradually fall off over time.

Just imagine, these things are worn by people on a daily basis, the consequences are simply unimaginable!

Therefore, in 2009, the country issued the first quality inspection standard for high-end jadeite - "Jade Jewelry Quality Grade Evaluation Standard".

3. C-grade jadeite

Let’s talk about A-grade jadeite. In essence, it is the same as B-grade jadeite, both of which are acts of passing inferior products off as high-quality ones.

However, the difference lies in the counterfeiting techniques. In addition to the various craftsmanship of B-grade jadeite, C-grade jadeite will also use some additional chemicals to make the originally unpopular inferior products look kind and moving.

And similar to B-grade jade, C-grade jade will gradually reveal its true appearance over time.

For professional appraisers, whether it is B-grade jadeite or C-grade jadeite, it will be exposed as long as it is placed under professional equipment and instruments.

Moreover, even the most basic optical magnifying glass, as long as the lens magnification is large enough, can see whether there are fillers or chemical coatings on the surface of the jade.

So, treasure lovers, you might as well buy a high-power magnifying glass. In addition to identifying the authenticity, you can also use it to appreciate your collection.

1. Strong light exposure

If you don’t have a magnifying glass, you can look at the jadeite in the sun or strong light.

①B-grade jade is like common resin. It not only has poor transparency and dull luster, but it is also difficult to form light spots on the surface of the jade.

② Although the dyed C-grade jadeite looks beautiful, its light transmittance is even worse than that of B-grade jadeite, and the color lacks the natural smoothness of transition.

This is because although jadeite is a mineral, as a stone-grade jade-grade polycrystalline aggregate, it is composed of jadeite or jadeite and sodium (sodium chrome pyroxene) and sodium calcium pyroxene (diopside).

The main chemical component is sodium aluminum silicate, and it often contains trace elements such as Ca, Cr, Ni, Mn, Mg, Fe, etc., so it has good light transmittance like gems.

2.Ultraviolet light irradiation

If conditions permit, jade lovers may also try using ultraviolet light, which is also the killer feature of B-grade and C-grade jadeite.

Chemical agents will be added to C-grade jade to improve its appearance, the most common of which is fluorescent agent. Therefore, under the illumination of ultraviolet light, fake jade will emit an extremely unnatural light!

3. Identification of aged vinegar

The chemicals used by unscrupulous traders on B-grade and C-grade jadeite will react chemically with vinegar, causing the fillers or fuel to turn black.

Therefore, this seemingly incredible folk "home remedy" is actually an exploration of science by our ancestors through the accumulation of experience.

As for A-grade jadeite, I believe that those who have authentic jadeite in their hands all have the habit of holding their collections under strong light.

Not only is the light transparent and round and full, but a very beautiful light spot is also formed on the surface, and the texture and color have a very obvious natural transition and layering.

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