Clarity of gemstones

Clean
Clarity of gemstones Clean (IF)
(IF)
Gems without inclusions

Eye Clean
Clarity of gemstones Eye Clean (VVSI)
(VVSI)
Gems where (possible) inclusions cannot be seen with the naked eye.

Very Slight Inclusions
Clarity of gemstones Very Slight Inclusions (VSI)
(VSI)
Small inclusions that are visible to the trained eye or when viewed under 10 x magnification.

Slight Inclusions
Clarity of gemstones Slight Inclusions (SI)
(SI)
Inclusions that can be seen with the naked eye.

Included
Clarity of gemstones Included (I)
(I)
Clear inclusions that can be seen with the naked eye.

Transparent
Clarity of gemstones Transparent
Gems which allow light to pass through without diffusing (scattering) it.

Translucent
Clarity of gemstones Translucent
Gems which allow light to pass through with diffusing (scattering) it.

Opaque
Clarity of gemstones Opaque
Gems which do not allow light to pass through.