The best clarity grade for diamonds is FL. According to the Gia standard, diamond clarity is divided into six levels from high to low: FL, IF, VVS, VS, SI, and I. FL level is the highest level and belongs to the flawless level of diamonds. Even under a ten fold magnifying glass, no inclusions or surface flaws can be seen. I3 is the lowest diamond clarity level, with obvious flaws and lower value.
Diamond clarity level
FL (flawless level): There are no inclusions inside or outside the diamond.
IF (flawless interior): The diamond has no internal flaws, but there may be a slight flaw on the surface that can be removed by re polishing.
VVS1, VVS2 (extremely slight inclusion level): There are very small flaws on the diamond pavilion or surface. The difference between VVS1 and VVS2 is that the latter has extremely small cotton like dots and small stubble.
VS1, VS2 (slight inclusion level): Diamonds have very small flaws. The difference between VS1 and VS2 is that the latter may have tiny cotton like dots or small stubble.
SI1, SI2 (micro inclusion level): Diamonds have small flaws that may be visible to the naked eye. SI1 grade diamonds typically have flaws that are not visible to the naked eye, while SI2 grade diamonds may be visible to the naked eye.
I1, I2, I3 (internal grade): Diamonds are prone to small flaws, visible to the naked eye, with some showing obvious cleavage and cracks.
How to choose diamond clarity
The higher the clarity level, the purer the diamond. You can choose the relevant diamond clarity level according to the purpose of the diamond. Generally speaking, collectible diamond clarity can be selected as FL IF，VVS-2， Wedding grade diamond recommendation VVS-2 VS-2， If you pursue cost-effectiveness, you may choose the SI1-SI2 clarity level.