Orientals like jade, and in China, Japan, and Korea, jade is very popular. Jewelry jade jewelry includes rings, necklaces, bracelets, pendants and more. Most of these jewellery uses the beautiful colors and warm texture of jade.
Different grades of jewelry have their own consumption layers and consumption trends. Low-grade jade can be used as gifts for mutual gifts, and the price is between tens and hundreds of yuan. Mid-range jade can be used as a gift, or you can buy and sell a piece of jewelry for yourself. Most high-end jadeites are purchased by wealthy businessmen. The boutique is the rarity of the rich.
The color of jade is very important and is the decisive factor affecting the value. To evaluate the quality of the color depends on whether the color is positive, whether there is color cast or other color, and the color is as good as possible. The second is to look at the shade of the color, the color is suitable for the light, the color is too strong, it is very heavy, the color is too light, and it is too tender. Again, look at the uniformity of the color, and the color is uniform. The color distribution is uneven.
It is easier to judge whether the jade jewelry has cracks, size or shape. No cracks are good, small cracks are second, and large cracks are more frequent. Therefore, in general, the price of a good jadeite is high, and the price of a little bit of a problem is lower. From the point of view of the preservation of value, a jade with good aspects is rare and the most worth buying. However, it must be stated that the jadeite is best in A, which is a natural jade without any artificial modification. This natural jade does not change with time, it can be permanently preserved and worn, and it also has a collection and preservation value. The potential for appreciation. The green on jade jewelry is generally not alive, and the longer it can be worn, the longer the green grows, but in special cases, the green will expand slightly. Jadeite is also called jadeite, the name of gemstone jade, and its mineralogical name is sodium pyroxene. In the study of artificial jade, it was confirmed that pure spodumene is colorless, and only green chemicals can be added after the addition of chromium chemicals. Therefore, the natural jade belt does not have green color, and it is seen that there is no "mixed in" chromium inside the jadeite, and the more the "mixed" chromium, the greener the jade. However, the amount of chromium contained in the ring or other jewellery processed from jadeite obtained from mines or rivers has been fixed. So the green on the jade cannot be alive.
However, in some cases, chromium in jade can produce a chemical reaction, which causes a small amount of diffusion of chromium, which is why people feel green "long". The jadeite that produces green "long" is mainly jadeite with jade necklace, jade bracelet and jadeite brand which are in close contact with the skin.
The reason is that the human body has a certain temperature and is also prone to sweating. The sweat has acid or alkaline components. These components can penetrate into the microcracks of the jade, some of which may react with the green chromium ions. Or dissolve the chromium ions that have been fixed in the jade to produce migration, so that the green is "long". In fact, there is no change in the content of green chromium produced in jade, only trace amounts of chromium are diffused or migrated.
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