In the quality evaluation of gemstones, weight (or size) is a very important factor, because weight is not only the basis of gem pricing, but also an important manifestation of rarity. For jade a cargo, the weight (or size) still has the meaning of rarity, but the price of the jade a finished product is not based on the weight, but in the "pieces", which leads to the quantification of the jade a cargo weight The difficulty of evaluation, and even the misinterpretation of the essential meaning of "weight (or size)" seems to lose the value of the measure of rarity.
In fact, in the commercial behavior of jadeite goods, the rarity of weight still exists and is included in the measure of “piecesâ€. Because the so-called pieces are abstractions of certain kinds of jade a goods, and the basic pricing of the pieces is related to the type of products. For example, in the series of products, the basic price of the bracelet is the highest, followed by the egg noodles and so on. The product, again a flower card, embodies the difficulty of obtaining the weight and weight of the material. Bracelets require the largest amount of materials, the highest requirements, the most difficult to find (the most rarity), followed by the ring face, the size of the ring face is small, but the requirements are positive, thick, fresh, uniform, strict conditions, jade buckles, etc. The material requirements are wider, but the material is not used, and the defective material can only be used as a carved product. So the basic pricing of each piece contains the rarity of material size.
However, this does not mean that the same kind of products, in the case of the same jade, must be heavier, as it is subject to the availability of the product, such as the egg noodles need not be too large, beyond the scope will not increase the price, Instead, it is a waste of materials, which is different from diamonds. On the other hand, if the jade product does not reach the normal size, indicating that the material is insufficient, it will affect its value.
The level of the size of the jade a finished product can be delineated according to its percentage with the normal size. If it is larger than 20% of the normal size, it is smaller than 20%, and less than 40% is too small.
The habit of trading in jade a goods also affects the pricing method of jade a raw materials. The price of jade a raw materials seems to be based on weight. In fact, the price of jade a cargo materials is still based on the material. What can be done on the basis of how much (japanese) can be done.
It is for the above reasons that the weight (size) element is not the same as the color, texture and clarity as the essential factor of jade quality, but as an extensional quality factor.
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