Who has used 4C diamonds? What are the 4Cs of diamonds

Diamond 4C knows no borders, and there is no mention of American 4C diamonds. 4c refers to color, cut, clarity and carat weight four.

1 weight (carat, carat, identification mark CT), needless to say, of course, the heavier the better, the more expensive. There is a carat premium on diamond weight, i.e. buying one 1 carat diamond is much more expensive than buying two diamonds of the same grade with 50 points.

2 color (color), the international general standard, to the whiteness of the color, transparency as the measurement standard, starting from d (color d grade is the whitest level), a backward arrangement, the more yellow the diamond, the current domestic market to n color, n color after there is little demand. At present, most of the domestic shopping malls sell diamonds between F-J colors, and high-color diamonds such as D and E are rare, and yellow diamonds after K are also rarely sold.

3. Clarity (clarity), commonly used in the world to IF, VVS, VS, SI, P are interpreted as: -(1) If is flawless, and the domestic is LC, that is, no flaws can be seen under ten times magnification - everyone remember: it is impossible to give this level of diamonds.

2) VVS is subdivided into VVS1, VVS - very, very small inclusions 3) VS is subdivided into VS1, VS2, VS grade inclusions are larger than VVS, 10x microscope is more difficult for professional diamond graders to find, VS2 grade contains more inclusions than VS1. 4) SI is subdivided into SI1 and SI2, all of which are small defects, and it is easy to see the defects SI1 under 10x magnification, and the number of points is divided into SI2; 5) P-level is subdivided into P1, P2, and P3, all of which are visible to the naked eye, P1 is visible to the naked eye, P2 is easy to see with the naked eye, and P3 is easy to see with the naked eye. Purchase suggestion:

From the point of view of price-performance ratio, I highly recommend the Si-VS grade diamond. If you like to collect, and want to be a friend who preserves the value of investment and has strong financial resources, it is recommended to buy VVS-IF diamonds.

4 Cut: It is a process in which a large number of diamonds give life to a diamond, and the perfect diamond cut is called the 3EX cut.

Diamond 4Cs For a polished diamond, the international standard of 4Cs is used to grade. The 4Cs are: Caratage, Clarity, Color and Cut.

Each standard has a different grading system for different institutions, and the GIA grading system was established in 1953 and is one of the first.

"4C" is an abbreviation of four English words that start with C, referring to the carat weight of a diamond.

The 4Cs are a measure of a diamond's value and quality. The so-called "4C" is an abbreviation of four English words that start with C, which refers to the carat weight, clarity, color and section construction of a diamond.

The weight of a diamond is measured in grams of nala, also known as a card. 1 carat = 200 mg = gram One carat is divided into one hundred portions, and each serving is called one cent. Carat is also called 75 points, and carat is 1 point.

Under other similar conditions, the value of a diamond increases exponentially as its weight increases.

The 4Cs of diamonds refer to the color, clarity, cut, and carats of diamonds.

It is a standard to measure the value and quality of a diamond, the reason why it is called "4C", because these four factors start with "C" in English, so if you want to judge the value and quality of a diamond, you only need to combine the "4C".

The color of the diamond is divided into 23 grades, from high to the bottom, from D to Z, the higher the grade, the closer the color of the diamond is to colorless.

How to care for your diamond

1. Do not collide with hard objects

Diamonds are the hardest gemstones, but they are not indestructible, they are brittle, they can break from heavy blows, they can come loose from aging settings, and it is best not to put them together with other diamond jewelry. When doing housework or other manual work, it is best to take off the diamond jewelry you are wearing and put it away to avoid accidentally colliding with hard objects and causing damage to the diamond.

2. Diamond jewelry is best placed separately

When storing and storing diamond jewelry, it should be placed separately and avoid mixing with other jewelry, otherwise the hard diamond will scratch other jewelry. In particular, it should be separated from **jewelry,**soft,put together with diamond jewelry, which is easy to be damaged, and ** is also easy to make the white gold metal used in the inlay yellow, affecting its color.

3. Keep away from oily substances

Try to avoid touching the surface of the diamond directly with your fingers, the diamond is lipophilic, and the oil on the ** will adhere to the surface of the diamond, affecting the luster and brightness of the diamond, and in the long run, the diamond will look gray. It is also best to wipe the diamond with a soft cloth after touching it.

Oil stains, stains, etc., can also mask the shine of the surface. Therefore, when washing dishes and cooking, you should take off your jewelry to avoid stains, oil fumes, etc., and if it is stained with oil, you should clean it with a professional jewelry cleaning solution.

4. Regularly inspect the condition of diamonds

For finished diamond jewelry, it's a good idea to check the diamond's setting regularly, such as touching the diamond with tweezers to see if it's shaking. Or take it directly to the jewelry store to have it checked.

5. Clean the diamond regularly

It is best to wash diamonds regularly during wearing, and they can be cleaned directly with water; You can also use a neutral detergent such as dish soap, take a soft-bristled toothbrush to brush the surface of the diamond, and use a dry flannel cloth to absorb the water; Or buy a special jewelry cleaning solution at a jewelry store and clean the diamond according to the instructions for use.

The 4Cs of diamonds are: diamond evaluation criteria.

The "4Cs" are your measure of a diamond's value and quality. The so-called "4C" is the abbreviation of four English words that start with C, which refer to the carat weight, clarity, color and cut of the diamond.

By combining the four points of the "4Cs", you can easily understand the value and quality of a diamond. Diamond** = Weight + Color + Clarity + Cut.

There are four main aspects of diamond grading, namely the 4Cs of diamondsDiamond weight, color, clarity, cut。Each "C" here has a hierarchy.

Diamond weight is measured in carats (ct), 1 carat = 200 mg = grams.

According to the purity of the color, the international diamond color is divided into 23 grades, and they are represented by English letters, starting from D, followed by D, E, F, G, H, I, J, K, L, M, N...z,d is the highest grade and z is the lowest grade.

There are six major diamond clarity grades and 11 minor grades. They are FL, IF, VVS (VVS1, VVS2), VS (VS1, VS2), SI (SI1, SI2), I (I1, I2, I3).

Diamond cut grades are graded from highest to lowest: Excellent, Very good, good, Fair, and Poor.

In addition, if you buy diamonds, you also need to pay attention to diamond fluorescence.

Diamond fluorescenceIt refers to the colored light such as blue light or yellow light emitted by diamonds under ultraviolet light. There are 5 levels of diamond fluorescence:

None: Does not emit light at all under ultraviolet light.

Faint: Faintly glows under ultraviolet light.

Medium: Glows under ultraviolet light.

Strong or very strong: Intense luminescence can be clearly seen under ultraviolet light.

Diamond 4C is coming.

Everyone is already familiar with the source of weight (baicaratweight),

Duclarity, colour, cut. When I.

Personally, I think the most intuitive is the cut, size, color, and clarity can be selected at a low point, but the most straight to the fire is related to the cut.