The grade of diamond rings is generally divided according to the international 4C standard, which is mainly divided into four aspects: carat, color, clarity and cutting.
2, the result (color)
The color of the diamond is naturally formed, according to the degree of color refraction from the sun, the closer to colorless the more precious, the diamond according to the color can be divided from D high-quality colorless diamonds to Z light yellow, a total of 23 grades. Among them, the scarcest and most valuable is color D, and the most cost-effective is color G-J
4. cut
Cutting generally refers to the cutting process, and the cutting process of diamonds is also an influential factor in the quality of diamonds. The cutting quality is mainly determined by the symmetry, polishing and cutting ratio of the diamond, which is divided into EX, VG, G, P, F from top to bottom, of which EX grade cutting quality is the highest and most popular.