Gemstone Clarity

Below is a chart created by GIA (Gemological Institute of America) to identify the clarity of a gemstone

Grades Meaning Type I Type II Type III
VVS Very Very Slightly Included Minute to not detectable - Minute inclusions, difficult to see under 10X. Eye clean Minor inclusions - Minor inclusions, somewhat easy to see with 10X. Usually eye clean Noticeable to obvious - Noticeable inclusions under 10X. Usually eye clean
VS Very Slightly Included Minor inclusions - Somewhat easy to see with 10X. Usually eye clean Noticeable to obvious - Noticeable inclusions under 10X. May be eye visible Noticeable to obvious - Obvious inclusions with 10X. May be eye visible
SL1 Slightly Included 1 Noticeable to obvious - Easily noticeable with 10X. Slightly visible to the unaided eye. Usually low relief Noticeable to obvious - Obvious inclusions, large or numerous under 10X. Apparent to unaided eye Obvious to prominent - Prominent to unaided eye
SL2 Slightly Included 2 Obvious to noticeable - Easily visible to the unaided eye. Usually low relief Obvious to prominent - Obvious inclusions, large or numerous under 10X. Very apparent to unaided eye Obvious to prominent - Very prominent to unaided eye
I1 Included 1 Prominent - Moderate effect on appearance or durability Prominent - Moderate effect on appearance or durability Prominent - Moderate effect on appearance or durability
I2 Included 2 Prominent - Severe effect on appearance or durability Prominent - Severe effect on appearance or durability Prominent - Severe effect on appearance or durability
I3 Included 3 Prominent - Severe effect on both appearance and durability Prominent - Severe effect on both appearance and durability Prominent - Severe effect on both appearance and durability
Dcl Not transparent - Stones not transparent because of inclusions