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  1. The international standard metering unit of diamond weight is Clat, which is usually abbreviated as CT. 1 carat = 200 mg = 0.2 grams.
    Diamonds with a weight of less than 1 carat usually use "points" as a measurement unit, 1 carat = 100 points. In the diamond certificate, the weight of the diamond is accurate to the third place after the decimal point.
    Cra, as a heavy unit, is a kind of corner bean tree (rice beans) that originated in the European Mediterranean seaside. The red flowers bloom in full bloom, the pods are brown fruit kernels, which can be used for gels.
    has a peculiar phenomenon of corner bean trees. No matter where it grows, the bearer it knotted is consistent with each weight. In history, this fruit is used as a weight to measure weight, and over time, it has become a weight unit, which is used to call valuable and subtle substances. Until 1907, the international business was a gemstone metering unit.
    Extension information:
    carat (CT), English cact, is usually abbreviated as CT. It is used as a gem meter unit in 1907 as a gem metering unit. Proportion. Evaluate the international standard of diamond 4C. 4C refers to color, clarity, weight, and cut (cut).
    1 carats can be divided into 100 points to calculate a small gem. Because the density of diamonds is basically the same, the heavier the diamond is the larger. The bigger the diamond, the higher the value of each carat.
    The public carat unit, that is, one carat is equal to 200 mg and was adopted since 1907. Before that, one carat was equal to 205.3 mg, which is 0.2053 grams.
    The price of diamond ring is calculated according to carats. Generally, 0.2 carats sell for about 4,000 yuan; 0.3 carats sell for about 7,000 yuan, the larger the more expensive. The beautiful diamond depends on its purity, whether there are cracks, how much cracks, color, cutting, etc. The price is related to the above points! Pureness, luster, weight, size, color (the purer the better), whether the workmanship is delicate, and the unsolved generally cannot see that it is diamond.
    The knowledge of diamonds:
    1, the higher the level of diamonds, the greater the impact on the price.
    2. Diamonds with critical weight are particularly obvious. Such as: 30 points, 40 points, 50 points, 1 carat, etc.
    3, less than 0.2 carat national standards are not classified. From 0.2 to 1 carat can be graded by naked diamonds or diamonds inlaid. Diamonds greater than 1 carat must be detailed in 4C in accordance with the naked diamond grading standard.
    How to choose a diamond ring:
    Generally speaking, it is more suitable for choosing a diamond inlaid with a diamond inlaid with 50 points. Diamond ring is a general choice for white -collar workers. Some broken diamond rings are also loved by a person because of their exquisite design.
    If economic conditions permit, it is better to choose a diamond ornament of more than 50 points, because diamonds above 50 points already have considerable value preservation and value -added capacity, and have a certain investment value.
    While paying attention to the weight of the diamond, we must pay attention to the color, clarity, and cutting of the diamond, that is, comprehensively consider the "4C" standard. Large weight, good cut (with bright light), less pure flaws, and well -white diamonds are good diamonds.
    In the purchase of diamond jewelry of more than 30 points. Do n’t forget to ask the merchant to show the identification certificate from the national testing department. In addition, it is recommended that when buying a diamond ring, it is best to use the earrings and pendants that can be matched with it, so as not to leave the jewelry to leave a regret.
    Reference information Source: Baidu Encyclopedia — Crast

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