Clarity of Gemstones

  1. Following is a list of gemstone clarity which is a description of the gemstone clarity: 

Clean - Stones that are free from inclusions.

Eye Clean - Stones that are clean to the naked eye.

Crystal Transparent - These stones are transparent and have excellent brilliance. They might have some minor inclusions, common to that particular gem type, but these do not deter from the rarity and beauty of the stone. The word "crystal" is commonly used in all major global gemstone sources.

VSI (very slight inclusions) - While these stones have some small inclusions, they will not diminish the brilliance and beauty of the stone when set.

SI (slight inclusions) - These stones have some inclusions visible to the naked eye but not to the extent of affecting the brilliance of the stone.

Included - These stones have some larger and/or many minor inclusions, somewhat diminishing the brilliance of the stone.

Transparent - Transparent stones allow light to pass through them without diffusing (scattering) the light.

Translucent - Translucent stones allow light to pass through them, but the light is somewhat diffused (scattered).



GIA Clarity Types

Clarity Types for Colored Gemstones using by GIA

Type 1 Gemstones are normally found to be clean.
Examples: Amethyst, Aquamarine, Blue Topaz, Citrine, Kunzite, Tanzanite, Yellow Beryl, Yellow Chrysoberyl

Type 2 Gemstones may have a few inclusions.
Examples: Alexandrite, Andalusite, Iolite, Peridot, Rhodoloite, Ruby, Sapphire, Spinel, Tourmaline, Tsavorite

Type 3 Gemstones that normally do not come clean.
Examples: Emerald, Red Beryl



GIA Clarity Grades for Colored Gemstones

Abbreviation     Description
vvs type1 minute to not detetable
vs type1 minor
si1 type1 noticeable to obvious
si2 type1 obvious to noticeable
i1 type1 prominent-moderate effect on appearance or durability
12 type1 prominent - severe effect on appearence & durability
13 type1 prominent - severe effect on beauty,transparency & durability
vvs type2 minor
vstype2 noticeable to obvious
si1 type2 obvious to prominent
i1 type2 prominent - moderate effect on appearence or durability
i2 type2 prominent - severe effect on appearence & durability
i3 type2 prominent - severe effect on beauty,transparency & durability
vvs type3 minor
vstype3 noticeable to obvious
si1 type3 noticeable to obvious
i1 type3 prominent - moderate effect on appearence or durability
i2 type3 prominent - severe effect on appearence & durability
i3 type3 prominent - severe effect on beauty,transparency & durability

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