Type I  Clarity

VVS Very, Very Slighly Included (the best) Miimute inclusions that are difficult to see using 10X, and are not visible at all to the naked eye.

Vs very Slightly Included Minor inclusions that are easier to see using 10X, but still not visible to the naked eye.

SI1  Slightly included I The inclusions are easily seen using 10X, and are noticeable with the naked eye.

SI2  Slightly included 2 The inclusions are more eassily seen using 10X, and are  quite visible with the naked eye.

I1  Included 1 The inclusions are very obvious and they have a moderate negative effect on the over-all appearance or durability of the gemstone.

I2  Included 2 The inclusions are very obvious and they have a servere  negative effect on the over-all appearance or durability of the gemstone.

I3  Included 3 The inclusions are very obvious and they have a servere negative effect on both the over-all appearance or durability of the gemstone.

Type 2  Clarity

VVS  Very, Very Slighly Included (the best) Miinor  inclusions that are somewhat easy to see using 10X, but still not visible to the naked eye.

Vs  very Slightly Included Noticeable inclusions that are easier to see using 10X, and may be slightly visible to the naked eye.

SI1  Slightly included I The inclusions are eassily seen using 10X, and are large or numerous, and are noticeable with the naked eye.

I2  Slightly included 2 The inclusions are more eassily seen using 10X, and are  large or numerous,and are very noticeable with the naked eye.

I1  Included 1 The inclusions are very obviouss and they have a moderate negative effect on the over-all appearance or durability of the gemstone.

I2  Included 2 The inclusions are very obvious and they have a servere  negative effect on the over-all appearance or durability of the gemstone.

I3  Included 3 The inclusions are very obvious and they have a servere negative effect on both the over-all appearance and durability of the gemstone.

Type 3  Clarity

VVS  Very, Very Slighly Included (the best) Noticeable  inclusions that are easy to see using 10X, but usually not visible to the naked eye.

Vs  very Slightly Included Obvious inclusions that are easy to see using 10X, and usually visible to the naked eye.

SI1  Slightly included I The inclusions are large and numerous using 10X, and are prominent with the naked eye.

SI2  Slightly included 2 The inclusions are large and numerous using 10X, and very prominent with the naked eye.

I1  Included 1 The inclusions are very obviouss and they have a moderate negative effect on the over-all appearance or durability of the gemstone.

I2  Included 2 The inclusions are very obvious and they have a servere  negative effect on the over-all appearance or durability of the gemstone.

I3  Included 3 The inclusions are very obvious and they have a server negative effect on both the over-all appearance and durability of the gemstone.