Thanks for post. In many countries, the color table for evaluating diamonds and emeralds is two-dimensional, and a certain location of defects can increase the value of stones, while in diamonds the presence of defects always reduces the value. Therefore, the sale of other precious stones to individuals is allowed only as part of products, and nothing else. Diamonds, on the other hand, are free from all of the above disadvantages. Best selling diamonds with certificates and grading report