There are too many dyed jades on the market. How can we easily identify them?

With the decrease in the output of jadeite raw stones, the price of jadeite has risen again. It is precisely because of this situation that the jadeite market is in chaos, and the phenomenon of counterfeits and inferior products has become more serious. So how can we quickly and easily identify them?

Currently, many jades on the market are made of strong acid injection and dyeing. Low-grade jade is transformed into high-grade jade after processing. Next, I, Lao Wang, will talk to you about how to identify dyed jadeite!

First of all, why does jade need to be “dyed”?

Through artificial dyeing methods, the color of colorless or light-colored jade can be turned into green, red or purple to imitate jade of better quality. This type of jade is called C-grade jade.

Secondly, what do they use to dye?

There are many kinds of dyes used for dyeing, such as amino dyes, chromates, and common purple and green polishing powders on the market, which can be used directly as dyes to dye the surface of jade.

Finally, how do we identify dyed jadeite?

1. Observe with the naked eye that the color is exaggerated, the contrast is large, it is not correct and unnatural.

Color roots are a color generation phenomenon. The color is in the form of strips, flakes, and lumps, with a gradient in depth. It diffuses from the inside to the outside or gradually penetrates into the interior of the jadeite. Color root is one of the identification bases for judging whether a jade piece is jadeite, or whether jadeite is artificially colored. However, for high-end jadeite of the old pit variety, its color roots are invisible or difficult to see because of its fine structure and uniform color.

2. When checking under magnification, for cases where the color is uneven and looks very similar to the real thing, pay attention to the phenomenon of color on color, that is, the mixing of real and fake colors. The key in this case is to find the difference in hue and other aspects between the real and fake colors at the edges where the colors overlap.

3. Observe under an incandescent lamp with a Charpy filter. If the color appears red, it means it is artificially colored. If the color does not turn red, there are two possibilities: natural color or dyeing, which requires further identification using other methods.

4. You can use ultraviolet fluorescent lamp to observe. Natural purple jadeite generally has no fluorescent reaction under ultraviolet light, while dyed purple jadeite often has more obvious fluorescence under ultraviolet light.

Generally, colorless quartzite is dyed, and the dyed quartzite looks realistic and natural, and is difficult to detect. This type of dyed quartzite has a fine texture, high transparency, and bright color, and is often used to resemble high-end jadeite. So please be careful when buying again!

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