The reason why jadeite is difficult to distinguish between good and bad is mainly because its skin is thick, and the door and mouth can't fully represent the whole jadeite. Therefore, when choosing jade. We must study the trend, quantity, distribution degree and color difference, positive, strong, light, positive and harmonious of green from the incision and the whole jade material; The length of water and the amount of impurities in the cracked willow. Whether the green color seen from the incision can enter the interior of the jade material, how much it can enter, and the possible changes of the green willow impurities after the green color enters should be considered. But the best way is to give as much money as you see (you can make something that can be sold when you see green and profit).
Of course, the above points do not guarantee that we choose high-quality jadeite original stone. Experts often need a lot of observation and thinking when buying jadeite original stone. It can be said that thinking more and observing more is definitely not a bad thing. Maybe experts don't have a college degree, but their experience and skills can definitely help buyers reduce resistance when choosing jadeite rough stones. When buying jadeite original stone, you can also consider the following points:
(1) If a piece of jade is cut, it depends on the cut piece of jade and the extension of green from the junction of two pieces of jade to the whole jade. Sometimes when buying jade materials, the door has been opened, but the opened piece has disappeared. This may indicate that there is a large piece of green on the jade piece, but there is less green on the open material. Experienced people can see that there are not many opportunities for green to enter the jade material, and there is no need to pay a high price.
(2) Jade materials, especially high-grade jade materials, left many scratches when the owner looked for green on the jade materials before entering the border of China. These marks are all green places, cleverly disguised with sand and glue the same color as the skin. If artificial concave and convex traces can be seen everywhere on a piece of jade material, how much money should be given to the green (the value of the finished green). Nine times out of ten, high-grade jade materials have traces of artificial polishing.
(3) Wipe a small window on the jade material, and the taste will be green. But think about it, if there is a lot of green, why not cut a big piece for us to see clearly, so as to give a good price! It's best not to buy such jade material, or make a counter-offer with the standard of brick material.
(4) The cut or large jadeite is green and full of green. We must observe such a piece of green carefully. The folk saying "not afraid of the first line, but afraid of a large area" (refers to green). This piece of green is often caused by cutting a knife along the green direction, that is, parallel to the green direction. In fact, the thickness of green is only a thin layer. Some high-grade jade materials, the researchers think that there is high jade in them, and everything is used with a knife. If the situation is not good, they are glued intact and then sold. At this time, the buyer should carefully observe each piece of jade to be purchased. If you are in doubt, you can draw a knife on the jade material and you will find the bonding line. You can also use the warm water method mentioned above to test. If bubbles overflow on the bonding line, it means that the jade material must have been bonded. But the jade in the hot water. If only some electrostatic beads are attached to the skin, this is not the case, because of the air brought in when jade is put into hot water. In this way, I identified a lot of bonded jadeite raw materials with high prices.
(5) Some jade materials have picks, fractures or cuts, which are lovely under the light, but they are not polished. This kind of jade material must be caused by too many cracks, poor water quality, irregular green or black inside green. Dare not polish, the shortcomings of polishing are exposed? In this case. You can point out the location and let him polish it before bidding. I don't think the owner dares to polish it. I have seen a piece of pigment weighing 5 kilograms, and one third of it is all green belt. You can see it clearly by peeling it all off. But it is only polished within the size of sesame seeds. The asking price is 5 million, and my highest price is 800 thousand. The negotiations broke down. Finally, someone in Guangdong paid 3 million to buy it. After that, some people in Hong Kong were willing to pay HK$ 5 million for it. Guangdong people feel that they earn too little, so they process their own jewelry. As a result, they only recovered 6.5438+0.2 million yuan because of internal corruption, and the loss was as high as 6.5438+0.8 million yuan.
The above are some tips for purchasing jadeite raw stone summarized by many experts, hoping to help the majority of stone gamblers.