wholesale jewelry for resale pittsburggh What is the difference between Chow Tai FM series of diamonds and GIA?

wholesale silver jewelry supply The understanding of the diamond certificate is not clear enough, or it is blurred. This is a very common problem now. There are often friends complaining that the clarity level on the international certificate of bare diamonds is "VVS". What is issued in the institution is "vs"; or the color of the international certificate is "F" color, and the "H" color is issued when the national inspection is issued. n Source: Diamond Express Jewelry Network
Here, many people who have bought diamonds say that the test standards for national inspection are too strict, or "only the strictest, not the most accurate", because the national inspection energy energy The diamonds of "VVS" can be said to have almost no parcel body under ten times a magnifying glass ~ because we use ten times a bull mirror to pick the diamond, and the national inspection uses twenty when the national inspection is tested. Looking at the microscope of more than more ~ ​​But then, the strict requirements of the national inspection are aimed at the grading of inlaid diamonds. Please note that this is a "mosaic diamond" classification certificate. It's not so harsh.
In information source: Diamond Express Jewelry Network

So why is it so harsh? Essence
Source of information: Diamond Express Jewelry Network
The first talk:
The clarity judgment of inlaid diamonds cannot be accurate. Because the clarity classification of bare diamonds is to be checked in all aspects of the crown, pavilion, and waist, and inlaid diamonds, when the clarity is graded, can only observe the precipitator of the diamond from the crown department. Some can check. The waist, but due to the limitation of the style, it is almost impossible to check the clarity of the diamond from the pavilion. Anyone who has been engaged in diamond classification knows that many of the parcels in diamonds may not be observed from the crown, but if you look at it from the pavilion, it is very easy to see.
In information Source: Diamond Express Jewelry Network
Im again:
only naked diamonds can correctly compare the color, because the color grading of the diamond has many strict requirements, when the naked diamond classification is graded It must be the lumbar bodium that is the most colorful than the diamond, and the inlaid diamonds, the countertop is upward, so that the diamond itself will largely cover the body color of the diamond. Therefore, the diamond is in the diamonds in the In the case of a countertop, it is difficult to accurately judge the color of the diamond. And after the diamond is inlaid, the color will be affected by the color of the surrounding metal. If there is a white metal next to it, the color of the diamond will be white. When the surrounding is yellow metal, the color of the diamond will also reflect the color It's yellow.
In information Source: Diamond Express Jewelry Network
So when the metal inlaid around the diamond is white, the inspectors will consciously reduce the color of the diamonds seen, so there will be appear to appear Bad of color level judgment. But please note that when the color of the diamond itself is high, this deviation will be relatively large.这是因为钻石的颜色分级里“H”色的钻石已经是基本没有黄色调的了，而“D-G”色这档高色级的钻石，并不是说级别越高，颜色就越白，而是The higher the color level, the more transparent the diamond is, so the "D" color diamond is very transparent, not very white. It must be paid attention to, because the diamonds that observe the standard can be found when the diamonds are better than the color stone. Color diamonds are not an increase in whiteness, but an increase in transparency. rn信息来源：钻石快线珠宝网rn因此，在判断这种高色级的钻石的镶嵌级别时，就非常容易出现较大的偏差，因为我前面已经说过，这个范围The diamonds are transparent. They are no longer yellow tone, and the sensitivity of human eyes to the depth of yellow tone is far more sensitive than the degree of resolution of transparency, and the diamonds have been inlaid at this time. Affected by the metal around the diamond, different styles and the degree of covering the diamonds are different. Therefore, it is very difficult to judge the transparency of diamonds. Therefore, it is not difficult to understand that the color grade that appears high -colored inlaid diamonds is different from the original nude stones.

It is also very critical: when diamonds are inlaid, they will definitely contact the metal, that is, after the diamond is inlaid, some parts will be blocked by the claws, or the bag inlaid At the time of the diamond, the outer ring of the diamond will be surrounded by metals. At this time, when the clarity inspection of inlaid diamonds, these places that are blocked by the metal are not visible at all, that is, inspectors cannot embed the inlaid inlaid well. Diamonds were removed and completely checked. Therefore, there are many blind spots for clarity inspections of inlaid diamonds. In other words, if the clarity level of inlaid diamonds is "VVS", maybe the level of bare diamonds may not necessarily reach "vs". Essence
Therefore, the clarity level of inlaid diamonds will be very demanding.
In information Source: Diamond Express Jewelry Network
, then diamonds with GIA's naked diamond grading certificate, will it definitely be downgraded when you arrive?
I have read the words I wrote above. I believe that now I will judge how to make a level of national inspection. The reason why the national inspection and some domestic testing agencies reduce the level of diamonds with international certificates, not the inspection staff of the national inspection, because they cannot judge the level, they will only lower the level, or because the inspector and the inspector and the inspector and There is no "relationship" in the testing agency. The domestic testing agency is to determine that the inlaid diamond is the international certificate, and the corresponding reference to the level of the nude diamond certificate to make its own level judgment. The level will definitely not have a lot to go with GIA's nude diamond certificate, but if you do inlaid levels, there will be some differences. I believe that friends who have carefully read the reasons above will understand it.