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What does diamond clarity si mean?
Diamond clarity SI means that professionals can easily observe obvious defects under the magnification of 10 times. Diamond clarity SI is a grade parameter among diamond clarity parameters, which includes two grade parameters: SI1and SI2:

SI 1 cleanliness

SI 1: Small flaw1-Professionals can easily observe obvious flaws at the magnification of 10.

SI2 transparency

SI2: Small flaw level 2-Professionals can easily observe several obvious flaws under the magnification of 10.

Diamond clarity is divided into fl \ if \ vvs1\ vvs2 \ vs1\ vs2 \ si1\ si2 \ i1\ i2 \ i3, and the clarity decreases in turn, as follows:

1.FL Transparency

FL: Flawless-professionals observe under the magnification of 10, and there are no flaws inside and outside. This diamond is the rarest of all purity grades.

2. If it is clear

If: flawless interior-professionals observe under the magnification of 10, there are no flaws inside, but there are tiny flaws on the diamond surface.

3.VVS 1 cleanliness

VVS 1: Very tiny flaw1-At the magnification of 10, professionals only observed a tiny flaw.

4. cleanliness of 4.VVS2

VVS2: Minor defect level 2-Individual minor defects were observed by professionals at the magnification of 10.

5.VS 1 cleanliness

VS 1: Flaw1-Professionals can see a single tiny flaw at the magnification of 10.

6.VS2 cleanliness

VS2: Defect Level 2-Professionals can see several tiny defects at the magnification of 10.

7.SI 1 cleanliness

SI 1: Small flaw1-Professionals can easily observe obvious flaws at the magnification of 10.

8.SI2 cleanliness

SI2: Small flaw level 2-Professionals can easily observe several obvious flaws under the magnification of 10.

9.I 1/I2/I3 cleanliness

I 1/I2/I3: obvious defects-obvious defects can be easily seen without a magnifying glass.