Brief introduction of diamond fineness grade table
The color grade of a diamond is a measure to distinguish the color of the diamond itself. The best color of diamonds is colorless, and the color scale is marked with D grade. The worst color of diamonds is light yellow or brown, and the color difference is clearly visible to the naked eye, which is marked with Z grade in the color code.
Second, the specific grade classification of diamond color
1, grade d
Diamonds with D-grade fineness are absolutely rare, and the color is completely colorless. No matter what tools are used to explore at any angle, diamonds can't show any color.
2. Grade E
E-class diamonds are very rare. Although they are not as perfect as D-class diamonds in color, in the eyes of consumers, they can't tell the difference between them and D-class diamonds with the naked eye. Only a professional jewelry appraiser can tell the color difference between these two diamonds.
3. level F.
Class F diamonds are high quality diamonds. In the eyes of consumers, they are no different from other high-quality diamonds. However, in the eyes of professional jewelry appraisers, they can tell that there will be a small amount of color smudge inside F-class diamonds with professional tools or high professionalism.
4, G-J level
G-J diamond is a kind of almost colorless diamond. Just looking at these diamonds, there is no way to tell their color difference. Only by comparing these diamonds with higher quality diamonds will the color difference between them be revealed.
5. K-Z level
These grades of diamonds are all visible to the naked eye. Moreover, these diamonds are dark in color, poor in fire color and not very high in quality.