VVS stands for "Very, Very Slightly Included" and is a measure of a diamonds clarity, which refers to the visual appearance of a diamond and its internal inclusions or external blemishes. To obtain a grading of VVS, the diamond must have very tiny inclusions that are difficult to notice even when viewing the diamond face-up under 10x magnification. Therefore, VVS diamonds are referred to as eye-clean, meaning you are unable to see any of the inclusions or blemishes with the naked eye. On the clarity grading scale, VVS diamonds are one step away from an internally flawless (FL) diamond.

The VVS category is divided into two grades; VVS1 denotes a higher clarity grade than VVS2. Typical inclusions that might set the VVS grade include pinpoints, needles, internal graining, or clouds that are visible only through the pavilion or are extremely difficult to see face-up at 10× magnification. VVS diamonds typically show minuscule versions of inclusions such as pinpoints, needles, internal graining, or clouds, and tiny surface-reaching inclusions like a chip, cavity, or feather.

In summary, VVS diamonds are diamonds with very small inclusions or blemishes that are barely visible, even under 10x magnification. They are one step away from an internally flawless diamond and are considered to be of high quality and rarity.