5 thoughts on “wholesale jewelry in bali What is diamond grade 4C standard”

  1. wholesale body jewelry labret 2mm ball The 4C standards created by GIA include: color (color), clarity, cut (cut) and carat weight. The GIA American Gem Institute is the first -time diamond grading standard in the industry today. Today, the 4C standard has been widely used in diamond quality certifications around the world.
    1, diamond color: refers to the colorlessness of the diamond.
    For most precious diamonds, its color appraisal standard depends on its colorlessness. A diamond that does not contain impurities and perfect structures is like pure water droplets. It has no color and has high value. GIA founded the color grading system of the D-Z. By comparing the diamond to the color stones under the condition of accurate controlling lighting and observation conditions to identify its colorlessness.
    2, Clarity: It refers to the degree of its internal or surface characteristics.
    Natural diamonds are formed by carbon in high temperature and high pressure environments. This process also leads to the internal characteristics of each diamond, which is called "inner content", and on the surface of the diamond is called "surface feature".

    3, diamond cutting: complex process and superb cutting skills.
    Only after carefully carved grinding ratio, symmetry, and polishing, can the unique light of diamonds perfectly show the bright light of diamonds. Cuts (CUT) is essential for the appearance and value of diamonds, and is the most complicated and most technical requirements for appraisal standards in the 4C standard.
    4, diamond carat weight: caraat is the measurement standard for diamond weight.
    1 carat is equal to 200 mg. The larger the diamond, the higher the degree of rarity. As a result, the price of diamonds will increase with the increase of carat weight. However, even if the weight of the two diamonds is the same, its value (and price) may be very different. Because the value of diamonds also depends on the other three standards in the 4C standard: clarity, color and cutting.
    The expansion information
    gia, Robert M. Shipley, founder of Institute of American Gem Institute Institute of America, was established in Los Angeles in the United States in 1931. How to evaluate the wholesale price.

    . In 1953, GIA founded the first laboratory in New York, began to issue a diamond appraisal report, and then set up two other two in Santa Monica and LA urban area in Santa Montanica, California. For Gem Trade .inc (GTL), GTL is not valued by GIA full -time appraisal.
    gia is an organization of non -profit business. It is established by the well -known jewelry merchants and social celebrities in the United States. It is an appraisal research institution shared by American jewelry industry. So far, GIA has 14 teaching institutions worldwide. Professional research, sales, appraisal and other courses have cultivated high -quality jewelry practitioners, and also promoted GIA's lofty reputation in the industry.
    Reference materials: Baidu Encyclopedia-Diamond 4C classification

  2. handcrafted jewelry wholesale Diamond 4C is mainly color, clarity, weight, and cutting.

    Colon
    The color is divided into 11 levels such as D, E, F, G, H, I-J, K-L, M, N-O, P-R, S-Z It is basically impossible to notice that diamonds are mixed. After all, different color levels, the price difference is relatively large, a one -carat D -color diamond is 20000 more expensive than F color.
    The clarity
    gia is divided into FL (no time), IF (internal no -time) VVS (extremely micro -flaw), VS (micro -flaw), I (flawed). The same 1 carat diamond, a difference of at least 10,000 levels, the clarity is a factor that can affect the diamond fire color. The clarity of the diamond ring we wear is ≥I1.
    The cutting
    The cutting work is essential for the appearance and value of the diamond, and it is the most complicated and most technical requirements for appraisal standards in the 4C standard.
    This levels are divided into excelvert, excellent (very good), good (good), fair, and poor. One -carat cutting a level price difference is 10000 , but cutting is a very important parameter for diamond fire.
    The carat weight
    carat (CT) is the quality (weight) unit of gems, and 1 carat is now equal to 0.2 grams or 200 mg. One carat is divided into 100 points, such as 50 points, which is 0.5 carats, to calculate a small gem. Under the same (high -quality) of other parameters of small diamonds, 50 points of diamonds are nearly 10,000 more expensive than 30 points diamonds, and one carat than 50 points is more than 40,000. Flash, plus the current diamonds showing a large process, so the diamond size is ≥30 points.

  3. wholesale gold jewelry manufacturers india Diamond grade 4C grading
    1. The color of diamond
    gia divides the diamond color to: D, E, F, G, I, J, K, L, M, O-Z, s-z, from from The left to right is reduced in turn. Among them, H color is standard white, and the H color will become more and more whiter, and only in different colors can be felt; the below H color will have yellow tones. Basically, yellow below J color is already obvious. Purchase Diamonds.

    2. Clarity
    The clarity level can be divided into: FL, if, VVS1, VVS2, VS1, VS2, SI1, SI2, P1, P3, P3, P3, P3 In Chinese standards, FL and IF collectively referred to as LC. Only P -level diamonds can be seen under the naked parcel. Diamonds above P -levels must be observed under 10 times large mirror. Of course, the package will affect the transparency of the diamond to a certain extent. As a result, the higher the clarity, the diamond looks like the diamond looks like The brighter.

    3. The level of modern social machinery and craftsmanship is very high, and diamonds rarely cut the quality, so I personally think that this standard does not need to care. The so -called eight hearts and eight arrows on the market sound tall, and Baidu Encyclopedia also brags with the so -called "using the world's top Cupid -style cutting". You can see the eight hearts and eight arrows under the cut mirror, so you should not increase the additional cost by the shopping guide.

    4. Carat weight (cact)
    is the weight of diamonds, which is usually measured by CT (carat). Among them, small diamonds will also use "points", 1CT = 100 points. Cera is not only used on diamonds, but valuable gemstones are basically carried by carats as heavy units. It is necessary to point out a name that affects the price: carat premium. The carat premium is simply a significant increase in the weight of the diamond weight. For example, the price of 99 -point diamonds and 1CT diamonds is very different. If you buy diamonds for collecting value, then it is best to buy integer carats, such as 1CT, 1.5ct, 2CT, etc.; If you just wear it for marriage, it is recommended to buy 48 points, 68 points, etc. There is no difference between 50 points and 70 points, but the difference in price is obvious.

    diamond price recommendation refers to the official website of Xid Diamond

  4. ceramic jewelry dish wholesale The 4C standard of diamonds refers to the weight of diamonds: under the same situation of other 3Cs, diamond prices are proportional to the weight and weight: Diamond cutting gives the diamond second life. : The color of the diamond is based on colorless. The darker the color and the worse and the clarity: the clarity refers to the amount of the diamond containing, the more defects inside the diamond, the more obvious the position is, and the lower the value.

  5. gold costume jewelry wholesale That is, 4 quality parameters of diamonds. Diamonds must be judged by this. Choose a diamond ring to see the diamond certificate. The above is a display of the diamond 4C. Men can only set one D R diamond ring with 30 points or more in their lives. There are national inspection certificates and GIA certificates,

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