Clarity

Clean

Gems without inclusions.

Eye Clean

Gems where (possible) inclusions cannot be seen with the naked eye.

Very Slight Inclusions

Small inclusions that are visible to the trained eye or when viewed under 10 x magnification.

Slight Inclusions

Inclusions that can be seen with the naked eye.

Included

Clear inclusions that can be seen with the naked eye.

Transparent

Gems which allow light to pass through without diffusing (scattering) it.

Translucent

Gems which allow light to pass through with diffusing (scattering) it.

Opaque

Gems which do not allow light to pass through.