GIA CLARITY TYPES

Type I
Usually eye clean
Type II
Usually included
Type III
Almost always included
Aquamarine
Chrysoberyl, yellow and green
Heliodore
Morganite
Quartz, smoky
Spodumene, all
Tanzanite
Tourmaline, green
Zircon, blue
Andalusite
Alexandrite
Corundum, all (Sapphires, Rubies)
Garnet, all
Iolite
Peridot
Quartz, amethyst, citrine, ametrine
Spinel, all
Tourmaline, all but green, red/pink and watermelon
Zircon, all but blue
Emerald, Red Beryl,
Tourmaline: red/pink and watermelon

 

 

GIA CLARITY GRADES

 

Type I

Type II

Type III

VVS

Minute inclusions, difficult to see under 10X. Eye clean. Minor inclusions, somewhat easy to see with 10X. Usually eye clean. Noticeable inclusions under 10X. Usually eye clean.

VS

Minor inclusions, somewhat easy to see with 10X. Usually eye clean. Noticeable inclusions under 10X. May be eye visible. Obvious inclusions with 10X. May be eye visible.

SI1

Easily noticeable with 10X. Slightly visible to the unaided eye. Usually low relief. Obvious inclusions, large or numerous under 10X. Apparent to unaided eye. Prominent to unaided eye.

SI2

Easily visible to the unaided eye. Usually low relief. Obvious inclusions, large or numerous under 10X. Very apparent to unaided eye. Very prominent to unaided eye.

I1

Moderate effect on appearance or durability. Moderate effect on appearance or durability. Moderate effect on appearance or durability.

I2

Severe effect on appearance or durability. Severe effect on appearance or durability. Severe effect on appearance or durability.

I3

Severe effect on both appearance and durability. Severe effect on both appearance and durability. Severe effect on both appearance and durability.

Dcl

Not transparent Not transparent Not transparent