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Identification of jadeite A, B, C goods
Jade, often referred to as the "King of Gemstones," is renowned for its crystal-clear luster and vibrant colors that beautifully blend both feminine elegance and masculine strength. This unique combination makes it a symbol of grace for women and power for men, which has made it highly cherished throughout history. Among all gemstones, jadeite with excellent clarity and color is considered the most valuable. However, high-quality natural jadeite is extremely rare, leading many to opt for treated jade products.
There are three main types of treated jadeite: A, B, and C goods. Understanding these differences can help buyers make informed choices.
A goods refer to naturally occurring jade that has not undergone any artificial chemical treatments. The original composition, structure, color, and transparency remain untouched, with only minor changes made through mechanical shaping. These items are certified as “Jade†without any additional notes.
B goods are lower-grade jade that has been chemically treated with strong acids to remove impurities and enhance the green or purple hues. Afterward, the jade is reinforced with epoxy resin. While the color remains natural, the internal structure is damaged, and over time, the jade may lose its vibrancy. These items are labeled as “Jade (treatment)†with details about the process noted on the certificate.
C goods involve jade that has been artificially dyed or stained using chemicals. The original jade is real, but the color is added. These items are also marked as “Jade (treatment),†with the method clearly stated in the remarks.
To identify B goods, look for the following signs:
1. The surface appears duller than natural jade, resembling the texture of wax or pork fat under light.
2. Cracks on the surface are irregular and can be seen more clearly with a magnifying glass when viewed from an angle.
3. The color and texture contrast sharply, and the color distribution appears unnatural.
4. The internal structure looks altered, with particles appearing loose and separated under magnification.
5. When tapped, the sound is dull and muffled—commonly used for checking jade bracelets, which can be suspended and struck gently with another piece of jade or metal.
For C goods, the color tends to gather along cracks. Under transmitted light, especially in a dark field, the color appears as fine filaments.
With the advancement of technology, counterfeit techniques have become more sophisticated, making visual inspection less reliable. Therefore, it’s strongly recommended to purchase jadeite from reputable manufacturers and always request an official certification to ensure authenticity. Always do your research and trust the source to protect yourself from misleading treatments.