How to judge the quality of online shop jade

Buying jade on the Internet, as a buyer, is nothing more than two channels of understanding: pictures and text descriptions. How to make valuable identification based on pictures and text?

The most feared part of the picture is the unreality. Many pictures in the online store also have such distortion problems.

Art photos are basically taken in professional studios, usually with a beautiful background, only very light shadows, and the light is very soft. The photo can cover up the shortcomings of the real thing, such as yellow dirty and light lines, making the jewelry look delicate and the color is like spring water.

Adding light to this photo does not have much background and strong light and shadow effects, so it is more concealed. The first is the background reference. If the background is a hand or other common things, we can judge the degree of polarization of the jade according to the degree of polarization of the background. In general, the addition of white light can improve the transparency of jadeite, cover up small cracks and dirty spots, make the dark color become brighter, and make the gray ground brighter; adding yellow light can make the jade texture look more even and make the light color become richer.

PS according to this photo is the post processing of the picture. If the light source is strong, it will generally reflect on the light side, a little overexposed. The PS photo is different, it is the artificial addition of light to the photo later, usually to make the gray ground brighter.

The description of the text description is a comprehensive evaluation of the size and water of the jade by the buyer. The online description, there are many exaggerated and misleading things, which need to be carefully identified: in terms of size, the width of the bracelet is more than 10mm. The thickness is more than 5mm, the round bracelet can be slightly smaller; the thickness of the pendant is preferably not less than 4mm, and it is safely deducted. At the same time, the aspect ratio should be considered, and the slenderness is basically made up of scraps. Below the aforementioned size, it can basically be said that the material is insufficient, or the material is very stubborn when it is done. Such products are not of high value.

It is very common to breed water to exaggerate the water. The beans are said to be ice, and the ice is said to be a glass. In fact, about planting water, you do not have to refer to the seller's statement, the reference picture is the most important. As long as it is not an art photo, whether it is plus or not, it can be judged by the shadow relationship with the background. For example, a bracelet, holding a photo under natural light with a hand, the shadow of the finger is not printed on the inside of the bracelet in the foreground, or the shadow is not clear, and the seller is marked with ice or even higher, which is obviously not up to . In fact, in reality, as a buyer, don't be too obsessed with what kind of water is in the end, but depends on its comprehensive performance.

The problem about cockroaches is more complicated. Generally speaking, the lines, cracks, dirt, sputum, stone ribs, the knife in the engraving, the wrong knife and the polishing are not good, even the shape is not neat, the image is not normal, can be called Why? It is necessary to treat the jadeite of the emerald correctly. On the one hand, the seller always declares that “there is no sky and no jade”, although there are all kinds of cracks in the original stone, but the processed jade will generally try to avoid the crack. On the other hand, it is necessary to treat the impact of 瑕疵 on the value of jade. Generally speaking, the inner side has a small influence on the value, the outer side has a large influence; the transverse crack has a small influence, the longitudinal crack has a large influence; the edge dirty influence is small, and the frontal dirty influence is large; the influence of the knife is small, and the influence of the defect is large.

The value of jade is not determined solely by the water. The water is good, the land is not clean and not worth the money, the ground is clean, the size is too small and not worth the money, the size is right, there is obvious value of the crack, there is no crack, the water is too poor or worthless. Therefore, when shopping online jade, you should balance and choose the baby that suits you.

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