All diamonds contain imperfections. Diamonds are formed under tremendous heat and pressure, therefore, it is extremely rare to find a diamond that lacks any internal and external characteristics.
Clarity refers to how many internal flaws (inclusions) and surface imperfections a diamond has and how visible they are under magnification or with the naked eye.
The Diamond Clarity Scale has 6 categories, some of which are divided, for a total of 11 specific grades.
- Flawless (FL) No inclusions and no blemishes visible under 10x magnification
- Internally Flawless (IF) No inclusions visible under 10x magnification
- Very, Very Slightly Included (VVS1 and VVS2 ) Inclusions so slight they are difficult for a skilled grader to see under 10x magnification
- Very Slightly Included (VS1 and VS2 ) Inclusions are observed with effort under 10x magnification, but can be characterized as minor
- Slightly Included (SI1 and SI2 ) Inclusions are noticeable under 10x magnification
- Included (I1 , I2 , and I3 ) Inclusions are obvious under 10x magnification which may affect transparency and brilliance
The lower a stone’s clarity grade, the more likely you are to see imperfections such as black carbon spots or lines within the diamond.
The higher the stone’s clarity, the higher it’s value will be.