Let's look at the positive solution

First of all, explain that 1 and 2 are together-there are few D colors, but it is too exaggerated to watch them only in museums. The D-E diamond introduced by the shop assistant must be inlaid diamonds, and the certificate of inlaid diamonds is only available in China (because there is no 4C grading standard for inlaid diamonds anywhere in the world except China).

The color classification of diamonds in China is: D-E, F-G, H, I-J, K-L, M-N; So there is nothing wrong with saying that the color is d-e.

Furthermore, the classification standard of inlaid diamonds is: LC VVS(VVS 1 and VVS2 are both in this level) vs SIP. Therefore, the statement of VVS is clear and correct.

The key to the above statement is that the certificate you see is issued by a domestic testing institution.

Secondly, the cutter did not explain that the cutter of diamond grading is the data observed by the diamond grader from the table. The cutting data includes five. But all the diamonds you see are inlaid, so the data is implemented according to the grading standard of inlaid diamonds, so there are only two data.

Third, H &；; A stands for eight arrows and eight hearts; 3EX means that the cutting, grinding and symmetry of the cutting part are perfect, which can achieve the effect of what we usually call "eight arrows and eight hearts".

Fourthly, the diamond grading certificate issued by GIA is not the so-called one carat or less. There is no such thing, but only diamonds with a score of more than 30 points can be used as GIA certificates. Diamonds with GIA certificate will be marked with GIA code on the waist edge of the diamond. A set of numbers can be found by observing with a high magnification magnifying glass (professionals 10 is enough), which can be verified by querying GIA official website.

In addition, all diamonds must have a certificate, and diamond ornaments without a certificate are not allowed to be sold on the counter.