GIA Clarity-Grading Scale
The GIA clarity grading scale specifies eleven grades. The grades are assigned based
on the relative visibility of characteristics (inclusions or blemishes) in the diamond.
Fl, Flawless
Shows no inclusions or blemishes of any sort when observed by an experienced grader
under a 10X magnification.
IF, Internally Flawless
These stones show no inclusions and only insignificant blemishes when examined by
a skilled grader under 10X magnification.
VVS1 & VVS2, Very, very slightly included.
Contains minute inclusions that are difficult for even an experienced grader to
detect under a 10X magnification.
VS1 & VS2, Very slightly included
VS stones contain minute inclusions ranging from difficult (VS1) to somewhat easy
(VS2) for a trained grader to see under 10X magnification. Typical inclusions are
small included crystals or feathers, distinct clouds, and groups of pinpoints. These
do not affect the stone's beauty.
SI1, SI2, & SI3 Slightly included
Contains noticeable inclusions which are easy (SI1) or very easy (SI2 and SI3) for
an experienced grader to see under 10X magnification.
I1 & I2 & I3, Included
These diamonds contain inclusions that are obvious under 10X magnification, and
can be seen face-up with the unaided eye, and may affect transparency and brilliance.
We do not carry any I3 diamonds.
Don't be concerned if the clarity of the diamond you choose is not near the top
the scale. Gems ranked near the top are extremely rare and expensive.
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