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Jasper belongs to the main variety of Hetian jade, the color is lush and green, and the jade is warm and delicate. The color of jasper is heavy in a bi-word. Bi is very green, but it is not only green, but also beautiful. The blue waves are not only bright on the color. At the same time, it is also bright and shining on the texture. How to judge Hetian Yubiyu in the end?
The evaluation of Jasper in the market is generally based on the following five points:
First, the color.
The best color in Jasper is often called spinach green, but the spinach green here refers to fresh spinach. And the dark black green that has been put for a few days is also used as spinach green. It must be bright green, the closer it is to the bright green, the more valuable it is!
Bright green can be said to be a peak in color, the color on the left is getting lighter until it reaches green, and the color on its right is getting deeper and deeper until it is dark green. Therefore, the more expensive the green jade bracelet is, the more expensive it is! In this respect, Obi is superior to Jasper in other places, and the bright jasper output is extremely high.
Second, the clarity.
Common factors affecting the purity of jasper have the following two points: ferrous oxide black spots and water lines. The number of black spots must be an important factor affecting the price of a jade jade piece. Of course, it does not include individual skillful carvings that can be used as craftsmen. A jade bracelet without black spots is generally more expensive than a jade bracelet with only black spots! So the first indicator of jasper clarity is the number of black spots!
Secondly, the waterline, in the Russian jasper, some of the mine's jasper material is very serious. Because the water line is white, it has a great influence on the beauty of jasper. It can be said that the more water lines, the lower the price of jasper. However, the cat's eye jasper formed by the large-scale waterline gathering in the past two years is not a factor that reduces the price of jasper. This is the characteristic of this jasper. Not only will it not lower the price, but it will increase the price of jasper itself. The messy white waterline will make jasper very ugly. Therefore, the price of jasper with a lot of water lines is not too high.
Third, the color uniformity.
The degree of symmetry mentioned here should actually belong to one of chromaticity. Because jade is not a synthetic or natural gemstone, it is difficult to have exactly the same color inside and outside the jade. So it is commendable, the more uniform the color, the more popular the jasper material is, the higher the price. But there are exceptions to everything. If this color difference is obvious enough to be a feature of this piece of jasper, then it is another matter. In general, jasper with a uniform color is more expensive. This is especially important in the purchase of jasper bracelets!
Fourth, the degree of detail.
In addition to the uniformity of the color and the high purity of the jasper, the fineness of the jade is also very important. The degree of detail is the apparent degree of the structure of jasper itself under the side light conditions. This is the same as the judgment of other jade colors. The fineness of jasper depends on its density and hardness. The better the hardness and density of jasper, the better the fineness. The best jasper can't see obvious structure under the side light, the water head is also very good, and the oiliness is higher! Hetian Biyu seed material is the leader in jasper in this respect.
Five, transparency.
As one of Hetian jade, jasper is also translucent, but this transparency varies depending on the condition of the jade. This concept can be understood with reference to the characteristics of Baiyu Qinghai and other materials. Generally, the light from the flashlight is illuminated, and the farther the light is transmitted, the higher the value. This indicates a higher content of tremolite.
The judgement of jade carvings is a comprehensive judgement at any time. The above five points must be combined to judge the quality of a piece of jasper. However, the proportion of the five points on the value of jasper has a certain regularity.
1. The proportion of chromaticity determining pricing factors is about 30%.
2, the degree of clarity accounted for about 30% of the pricing factors.
3. Uniformity accounts for about 10% of the pricing factors.
4, the degree of fineness accounts for about 20% of the pricing factors.
5, the degree of transparency accounted for about 10% of the pricing factors.
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