Kral: It refers to the content of diamonds. The less inclusions, the better. Generally, under the magnifying glass of 10 times, if the purity of impurities is not visible to the naked eye, it can be purchased. The invisible defect level with high cost performance is VS, and inclusions may be seen at a lower level, so VS level is generally recommended. Please refer to the figure below for details.

Theoretically, the VS2 level still belongs to the naked eye level, but if you are not at ease, you can let the merchant actually show you the drill. When choosing diamonds, besides purity, other parameters also need to be considered comprehensively. I am a jewelry designer and love painting. You can answer other questions by private mail ~