The color and clarity of diamonds are very important. The color and clarity of diamonds are observed under a magnifying glass of 10 times, so generally speaking, it will not affect wearing. The clarity of diamonds should be above SI 1, and it is suggested to choose diamonds between D, E, F, G, H and I as colors. The clarity is determined by professionals according to the content of diamonds under the magnifying glass of 10 times. Most diamonds in jewelry stores are above SI, that is, "flawless to the naked eye". Inclusions are natural traces left in the process of diamond formation, which will not affect the beauty and durability of diamonds (above SI, inclusions are invisible to the naked eye), but will make diamonds more distinctive. Even a slightly inferior P-grade diamond can be displayed in front of people as long as it is bigger, and no one will chase you to confirm the purity of that diamond with a magnifying glass. The color of a diamond is an important determinant of its value. Colorless is the best, and the darker the tone, the worse the quality. Grading with d-e-f-g-h-i-j-k ... Z. That is, from colorless to light yellow. D is the top color (D is the first letter of a diamond). D-F is colorless, and G-H is almost colorless. Diamonds from K will gradually turn yellow, which is basically meaningless for collection and wearing. The value of diamonds is determined by 4C, so 4C is very important. From the perspective of cost performance, we need to pay more attention to the selection of diamonds. After the size is determined, it is suggested to consider the c of cutting first, and the fineness of cutting directly affects the fire color of diamonds. Therefore, we often say that cutting is the second life of diamonds, followed by the color C. The closer the color is to D, the more transparent the diamond is. It is recommended to consider the clarity c finally. It is better to use VS or above, because the clarity only affects the price of the diamond, but has no effect on the fire color and permeability of the diamond. If your budget allows, you can consider increasing the clarity parameter of diamonds.