What do A-grade, B-grade, and C-grade jadeite mean?

The terms "A-grade jadeite" and "B-grade jadeite" actually refer to the classification of the authenticity of jadeite. They are nicknames for natural jadeite and optimized jadeite within the jewelry industry.

Roughly speaking

A-grade jade refers to natural jade that has not been filled or dyed.

Jade B refers to jade that has been acid-washed and filled with glue.

Jadeite C refers to jadeite that has been dyed.

There is another type of jade that has been filled with glue and dyed, which is called B+C goods. Newbies can usually only rely on certificates to determine authenticity.

Next, let's take a look at the specific conditions of these jadeite A-grade, B-grade, and C-grade:

1. Grade A Jadeite

Grade A jade is pure natural jade, which is also what people call the real thing.

Many people have a misunderstanding that A-grade jade refers to the best jade, but it is not. A-grade jade does not refer to the grade of jade, but emphasizes that the jade is natural. The entire process from mining to processing into jewelry is just carving and polishing, and the jade has not undergone any chemical treatment.

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It has not undergone any dyeing or electroplating treatment, and its color, structure, transparency, etc. remain in their natural state. The natural color is the true color or real color.

If you observe its texture with the naked eye, you will feel that it is very delicate, the color is very soft, the stone grain is obvious, and the sound of a slight tap is crisp and pleasant.

Because the internal structure of A-grade jade has not changed, it is durable and its color remains natural over time.

A-grade jade will become more beautiful the more you wear it. High-end A-grade jade not only has excellent decorative functions, but also has collection value and investment value.

I would like to remind everyone that only A-grade jadeite is the real thing.

2. B-grade jadeite

B-grade jadeite refers to jadeite that has been treated with chemical glue injection during the processing process, which changes its quality. It is a typical example of selling inferior products as high-quality ones.

It is soaked in strong acid to remove impurities, and then filled with glue to change the ordinary opaque jade into transparent jade, thus making the jade lose its natural spirituality. Therefore, B-grade jade is also called "shower" jade.

B-grade jadeite generally looks very beautiful in color and has a very transparent texture, but its price is very low, about one-tenth of the price of A-grade jadeite with the same appearance.

The reason why many people accidentally buy B-grade jadeite is that it often looks good and cheap.

However, B-grade jadeite cannot stand the test of time. Its texture is fake and generally after a few years the silicone will oxidize and become unrecognizable.

3. C-grade jadeite

C-grade jadeite refers to jadeite that has been artificially dyed, with color artificially added to colorless jadeite.

The dyeing method is to heat the jade to increase the cracks between the crystal particles, and then put it in the dye to allow the color to enter the cracks.

Generally, the dyed colors are green, purple, yellow, and red, which are common jade colors in the jade market. However, the colors are also "dead" and "dull", and lack the aura of natural colors. Its various organic dyes are also harmful to the human body.

4. B+C Grade Jadeite

B+C grade jade is a combination of B grade and C grade jade, that is, it refers to jade products that have been corroded by strong acid and dyed, and then injected with colorless or colored glue.

B+C grade jadeite looks beautiful in both color and water content, and can be used as a cheap and good quality jewelry, but it has no collection value.

Next, Lanyu will show you how to identify A-grade, B-grade, and C-grade jadeite:

1. Observe whether there are impurities.

Because jade is formed in nature, there are inevitably some impurities in it. A-grade jade will also have certain impurities, but processed B-grade, C-grade, and B+C jade will have very few impurities.

2. Look at the color root. Color root refers to a point or a line of slightly darker green in jade jewelry. This slightly darker green gradually transitions into a relatively lighter green and is called a color root.

The color and base of natural A-grade jadeite are naturally coordinated and the outline is clear and distinct. However, the color roots of processed B-grade, C-grade, and B+C-grade jadeite are very blurred, with spots, black dots, or floating pieces appearing between the color and the base.

3. Look at the gloss.

The luster of A-grade jadeite is generally a strong glass luster, while the luster of other B and C-grade jadeite is dull, generally looking like wax or resin. The surface and shallow parts are relatively transparent, and become more turbid and unclear as you go deeper into the jade.

4. Look at the surface.

The surface of A-grade jadeite is smooth and delicate, and you can see the difference in hardness of different mineral particles, resulting in subtle bumps and grooves on the surface and lines where the particles meet.

The surface of B-grade jadeite is messy, with lines of varying straightness and curvature, and it can be seen that it presents tree-branch-like grooves.

The surface color of C-grade jadeite is relatively rich, and the color becomes lighter as it goes deeper in. Sometimes, the color can be seen distributed along the edges of the grains and in cracks like a spider web.

5. Look at the jade quality.

The jadeite texture refers to the star-shaped, needle-shaped or flake-shaped shiny surface, also known as fly wings, which is an important sign for identifying genuine jadeite.

Generally speaking, the green properties of A-grade jadeite are obvious, while the green properties of B-grade, C-grade, and B+C-grade jadeite are damaged during the processing and their green properties become blurred.

6. Look at the color.

Colors can be observed mainly from two aspects. The first is the feeling at first sight.

If the color of jade seems unnatural to you at first glance, you should pay attention, because artificial coloring is different from natural color after all.

Then there are B-grade, C-grade, and B+C-grade jadeite. The color is blurred, with no specific shape, and the color has no clear boundaries.

7. Look at the touch.

Natural A-grade jade feels like cool glass, while processed B-grade, C-grade, and B+C-grade jade feels greasy to the touch.

8. Listen to the sound.

When natural A-grade jadeite collides with each other, a clear and pleasant sound will be emitted, accompanied by an echo. But the sound made by other goods when they collide with each other will be dull.

Finally, let me teach you a few of the most practical tips that can be easily identified with the naked eye:

1. Water identification method: drop a drop of water on jade, if it becomes a dewdrop shape and does not disperse for a long time, it means it is A-grade jade. However, if the water drop disappears quickly, it is B, C, or B+C grade jade.

2. Tongue licking method: If you don’t mind the dirt, you can use the tip of your tongue to lick. Natural A-grade jade will have an astringent feeling; while fake B, C, and B+C jade will not have astringent feeling.

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