Standards - Clarity

FL - Flawless

IF - Internally flawless

VVS1-VVS2 - Very very slight inclusions

VS1-VS2 - Very slight inclusions

SI1-SI2 - Slight inclusions

P1-P2-P3 - Inclusions visible to the naked eye

While diamonds are forming in the earth, minerals or fractures appear. These are called inclusions and the position and size of these inclusions can affect the value of a diamond.

Inclusions, which appear as minute crystals, feathers or clouds, are measured on a scale of clarity which ranges from F (Flawless) to P (Pique) based on the visibility of inclusions at a magnification of 10x.

If no inclusions can be seen at this magnification a diamond is termed as Flawless, but truly Flawless diamonds are extremely rare indeed and, obviously, extremely valuable.