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CLARITY GRADING SCALE
GRADE |
DESCRIPTION |
F |
Flawless. The diamond shows no inclusions or blemishes of any sort under 10X magnification when observed by an experienced grader. Note: Truly flawless or internally flawless (F or IF on the GIA's grading scale) diamonds are extremely rare. |
IF |
Internally Flawless. The diamond has no inclusions when examined by an experienced grader using 10X magnification, but will have some minor blemishes. |
VVS1, VVS2 |
Very, Very slightly included. The diamond contains minute inclusions that are difficult even for experienced graders to see under 10X magnification. |
VS1, VS2 |
Very slightly included. The diamond contains minute inclusions such as small crystals, clouds or feathers when observed with effort under 10X magnification. |
SI1, SI2 |
Slightly included. Inclusions are obvious under 10x magnification and may or may not be visible to the naked eye. However, when set in jewelry, the inclusions may become less visible. |
I1, I2, I3 |
Included. Inclusions are obvious under 10x magnification and are usually visible to the naked eye. This quality allows for a larger diamond to be purchased at a lower price. |
COLOR GRADING SCALE