2. The crack of the jade bracelet is the damage that reaches the jade surface. It may be a shear or tensile crack formed by stress in geological process, which is not healed by minerals in the later stage, or it may be that the stone is damaged during mining, processing or decoration. But no matter which way it is formed, as long as jadeite has such cracks that can be observed under white light reflection, its value will at least decrease by 1/3. Any texture that can be obviously hindered by scraping with nails on some polished jadeite surfaces can be regarded as cracks. If the jade bracelet is broken or broken, it needs to be repaired with gold inlaid jade. There is a mantra in the jewelry industry: "Ten treasures and nine cracks, no grain can make no jade", which means that there are very few gems and jade without cracks at all. Therefore, when purchasing jade bracelets, on the one hand, we should observe carefully, on the other hand, we should not be too picky. Because there are few perfect jade bracelets, even if there are perfect items, their prices will definitely be higher, even much higher. For some small cracks that are difficult to see from a distance with naked eyes or a magnifying glass, you can ignore them as long as you can accept the big ones. Otherwise, either you can't buy your favorite jade bracelet, or after you buy it, I don't know which day you will find that the jade bracelet has cracks and your mentality is unbalanced and troubled.
3. Jade grain (stone grain) looks linear or linear, and the color is different from the surrounding material, but there is no gap at the grain line. Jade grain (stone grain) is actually formed in the process of the formation and growth of jade, and it is caused by the later geological action, which heals the original broken jade. It has little effect on the durability and firmness of jade, but only on the appearance of jade pieces; However, cracks are another matter. They are mostly cracks caused by geological processes after the formation of jade or cracks caused by external forces such as firecrackers, knocking, impact or vibration during the mining, transportation, processing or storage of jade. These cracks often have obvious cracks and fissures, which can be felt even by touching them with your hands or scraping them gently with your nails. Jade with many cracks and obvious cracks has low economic value. Other cracks are visible and untouchable, and the color of cracks is generally black or yellowish brown. Although the bracelet with many cracks will not break in a short time, it is in danger of being easily damaged.
4. There is a mantra in the jewelry industry: "Ten treasures and nine cracks, no grain can make no jade, which means that there are very few gems and jade without cracks at all. Therefore, when purchasing jade bracelets, on the one hand, we should observe carefully, on the other hand, we should not be too picky. Because there are few perfect jade bracelets, even if there are perfect items, their prices will definitely be higher, even much higher. For some small cracks that are difficult to see with the naked eye or a magnifying glass in the distance, you can ignore them, as long as you can accept the big aspects. Otherwise, either you can't buy the bracelet you like, or after buying the bracelet, I don't know which day I found a crack in the bracelet and my mentality was unbalanced.