The probability of finding a flawless, clear diamond is just like finding a person without bad habit. To check the clarity, experts use a 10x magnifying loupe which allows them to see the appearance of tiny crystals, feathers or clouds which are also called inclusions. Such inclusions or blemishes occur in almost all diamonds. However, these are nothing to worry about as they have the least impact on the beauty of the diamond due to their microscopic sizes. But a large inclusion could potentially affect the diamond’s ability to transmit light, thus affecting its overall appearance.

There are generally five grades which are used to categorize clarity. In addition to checking clarity grade, the location of the inclusion is equally important as it would be more favourable if it is located not near the top or noticeable areas. The GIA grading system for diamond clarity is listed below.

GIA FL IF VVS₁ VVS₂ VS₁ VS₂ SI₁ SI₂ I₁ I₂ I₃     AGS 0 1 2 3 4 5 6 7 8 9 10

F

L (Flawless) – IF (Internally Flawless)
Flawless Diamonds reveal no flaws on the surface or internally are the rarest and most beautiful gems.

Internally Flawless Diamonds reveal no inclusions and only insignificant blemishes on the surface under 10x magnification.

VVS1 – VVS2 (Very, Very Slightly Included)
Very difficult to see inclusions under 10x magnification. These are excellent quality diamonds.

VS1 – VS2 (Very Slightly Included)
Only looking through a 10X loupe can pinpoint the inclusions in this category and are nearly impossible to see with the naked eye. These are less expensive than the VVS1 or VVS2 grades.

SI1 – SI3 (Slightly Included)
Diamonds with inclusions easily identified under 10x magnification. Finding flaws in this category with the naked eye is difficult. The gems in this category maintain their integrity, depending on the location of the inclusions.

I1 – I3 (Included)
Diamonds with inclusions which may or may not be easily seen by the naked eye. The flaws on the stones in this category will have some effect on the brilliance of your diamond.

See how to budget on diamonds clarity