There are several arguments about the origin of the word jade. One way is that it was shipped from Myanmar to the country through the second Silk Road from the early Qing Dynasty. At that time, the jade jade produced in China was called jade, and the jadeite in Myanmar. When it flows into Yunnan, it is not China's jade, which is called "non-green", meaning "not China's jade." As time went by, "Non-Cui" became jade. Another way of saying this is that emerald jade, red and green, jade is red jade and green jade.
From the second statement, color is the key to jade quality evaluation. The color evaluation of jade can be summarized as "positive, yang, concentrated, and".
Positive, refers to the degree of purity of the color, physically known as the hue or dominant wavelength. The color of high-quality jade is required to be as green and pure as the color of holly leaves when it is sunny. It cannot be blue, yellow or gray in the emerald green. The richer the color tone, the lower the color quality of the jade.
Yang, refers to the bright and bright color of the color, the green should be bright and fresh, to be bright, bright, generous, and to play a bright brilliance.
Concentration, which refers to the saturation of the color, is the single living degree of the wavelength of the color light. The saturation of the color is high, the saturation is low, and the color is light. The saturation of the color is closely related to the type and purity of the coloring ions contained, and is also greatly affected by the structure and transparency of the jadeite. In the specific evaluation, the color is as strong as possible under the premise of ensuring transparency and other conditions.
And, refers to the uniformity of the same color of the jade. The uniform color of the entire jade jewelry is required to be as uniform as possible. The color of the jadeite should be even and soft. In addition to the uniform distribution of colors, it must be coordinated with texture and transparency.
There are dozens of types of jade: old pits, white-green, blue-and-white, oil-green, bean, and hibiscus. The most high-grade ones can be regarded as old glass. "Water head" is the word of the family, referring to the transparency of the jade (ie "species"). If the transparency is high, the connoisseurs call it "the head of the water"; in turn, the one with low transparency is called "the head is short." The higher the transparency, the better the jade quality and the higher the price. We must be careful when observing the emerald water head, because transparency is related to the thickness of the jade itself. Be especially careful about the hollowing out of the jadeite products, because the hollowed out part of the jade is thinner, the light is good, and it looks like the water head is long.
Insiders divide jade into a cargo, b cargo, and c cargo. a goods is the original jade (not "b" or "electric color") without artificial heat such as high heat, high pressure, etc., the original germplasm is already like this, the color is natural, commonly known as "positive color" or "true" color". A cargo is not necessarily a high-grade goods of the first grade, but it is not an "evil color". It does not remove impurities and glue the upper plate, and has not burned it. A goods themselves are also divided into many levels.
b goods are not light secondary jade or defective products, but will be processed manually, such as the use of strong acid to dissolve impurities in jade, destroying the molecular structure of jade; and bonding with epoxy resin. The b jade, which is usually heated by a high-temperature electronic jar to remove the turbidity, makes people suddenly feel that the head is long; in fact, the jade is not natural, nor fine; although it can make people feel illusory and transparent. In fact, the structure has been destroyed, because the high heat, the jade has been loose. Therefore, we should not buy austerity and blindly believe in people. Many folks b counterfeited a cargo, which is basically a substandard goods. The artificially processed "bottom goods" b jade will gradually lose its luster and crack, because it has been burnt by high heat, so it will be like the oil after a few days. The germplasm, moisture and green color of a real jade are permanent.
c goods are as bad as b goods, is a dyed goods, commonly known as "electric color" or "color", after repeated heating and dyeing procedures more than ten times, will be discolored in the event of high heat in the future.
How should modern jade collections be appreciated? I provide some ways for reference only:
First, look at jade. Jade is the primary premise of jade collection. High-quality jade is essential for a jade, such as seed, water, color, smudgy, cracks, etc., which are important factors in jade grade and should not be ignored.
Second, identify the shape. Modeling is the aesthetic framework of jade, and it is also an important factor in determining the value of its collection. The shape is determined by the use of jade and the shape of jade embryo. The shape should be well-proportioned and not balanced. The balance and stability is the beauty of the work.
Third, the process of analysis. It is the process of transforming jade into jade carving. Wherever the jade carvings are smooth and fluent, the skilled workmanship must be the best of the United States. On the contrary, the sculpt is sluggish, and the muddy water will make the collection value drop sharply.
Fourth, art. Art is the highest level that every jade is pursuing and the hardest to do. Everything is vivid, and the gods of the form are all artistic expressions with high collection value.
Fifth, look at innovation and antiques. The two major art forms of jade are innovation and antiques. From the perspective of artistic innovation, new jade articles are worth collecting. However, antique jade can not be ignored.
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