Clarity Grade |
Description |
FL |
Flawless. Shows no inclusions or blemishes of any sort under 10X magnification when observed by an experienced grader. No internal flaws. Very rare and very expensive. |
IF |
Internally Flawless. Has no internal inclusions when examined by an experienced grader using 10X magnification, but will have some minor blemishes. Also very rare and very expensive. |
VVS1 |
Very, Very Slightly Included. This contains minute inclusions that are difficult to see under 10X magnification even for experienced graders. |
VVS2 |
Very, Very Slightly Included. Contains minute inclusions that are difficult even for experienced graders to under 10X magnification. More inclusions compared to VVS1. |
VS1 |
Slightly Included. Contains inclusions (clouds, included crystals, knots, cavities and feathers) that are noticeable to an experienced grader under 10X magnification. Might be visible to the naked eye. Lesser inclusions as compared to VS2 and this grade is considered of good quality. |
VS2 |
Very Slightly Included. Contains minute inclusions such as small crystals, clouds or feathers when observed with effort under 10X magnification. More inclusions as compared to VS1 but less compared to SI1. Inclusions are not visible to the unaided eye and is considered high quality. |
SI1 |
Slightly Included. Contains inclusions (clouds, included crystals, knots, cavities and feathers) that are noticeable to an experienced grader under 10X magnification. Might be visible to the naked eye. Lesser inclusions as compared to SI2 and this grade is considered of good quality. |
SI2 |
Slightly Included. Contains inclusions (clouds, included crystals, knots, cavities and feathers) that are noticeable to an experienced grader under 10X magnification and might be visible to the naked eye. Lesser inclusions as compared to SI3. A good diamond value. |
SI3 |
Slightly Included. Contains inclusions (clouds, included crystals, knots, cavities and feathers) that are noticeable to an experienced grader under 10X magnification. Might be visible to the naked eye. Lesser inclusions as compared to I1. A good diamond value. |
I1 |
Contains inclusions (possible large feathers or large included crystals) that are obvious under 10X magnification and may affect transparency and brilliance. Inclusions are visible to the naked eye. |
I2 |
Large and/or numerous internal defects which are very easily discernible by the experienced expert with the naked eye and which diminished brilliance. |
I3 |
Large and/or numerous internal defects which are easily discernible by the experienced expert with the naked eye and which slightly diminished brilliance. |