What is the grading table of diamond fineness? Can you tell which diamond is good or bad?

The fineness of diamond is reflected in four aspects: the weight of diamond, the purity of diamond, the cutting of diamond and the color of diamond.

The grade of weight is size. The greater the weight, the more expensive the diamond. The clarity grade of a diamond is high or low according to the number of defects contained in the diamond. Generally, the highest grade is fl, which belongs to flawless grade, followed by if, which belongs to internal flawless grade, followed by vvs 1, vvs2, vs 1, vs2, si 1, si2, i65438+.

Cutting grade of diamond fineness

The fineness of diamond is greatly influenced by cutting, and the cutting of diamond is influenced by manpower. The higher the cutting level, the better the diamond. According to the quality of cutting, the cutting level can be divided into five levels: ex, VG, G, F and P. EX is the best and brightest perfect cutting, which can represent the eternal love between lovers.

Diamond fineness grade

The quality of a diamond depends on its specific color. Generally speaking, diamonds are colorless, and the more colorless diamonds are, the more valuable they are. According to the different degrees of stone color from light to dark, the color grades can be divided into D, E, F, G, H, I-J, K-L, M, N-O, P-R and S-Z, and the D color is the most perfect color.