The diamond grading system we use is our own, based on the qualities of diamonds we use most often. The following cross-reference tables are approximate.

All round stones in our mounted merchandise as follows:

VS Quality
Clarity	Color
VS2 / SI1	G-I
Minor inclusions ranging from difficult to see to somewhat easy to see under magnification.	Near colorless

A4 Quality
Clarity	Color
SI1 / SI2	G-I
Noticeable inclusions that are easy (SI1) or very easy (SI2) to see under magnification.	Near colorless

AAA Quality
Clarity	Color
SI2 / SI3	G-I
Noticeable inclusions that are easy or very easy to see under magnification.	Near colorless

AA Quality
Clarity	Color
I1	G-I
Obvious inclusions that are often easily eye-visible face-up.	Near colorless

A Quality
Clarity	Color
I2	I-J
Obvious inclusions that are often easily eye-visible face-up.	Slight tint

BB Quality
Clarity	Color
I3	I-J
Obvious inclusions that are often easily eye-visible face-up; in I3, they may threaten durability.	Slight tint

All Princess, Marquise, and Baguettes in our mounted merchandise as follows:

VS Quality
Clarity	Color
VS2 / SI1	G-I
Minute inclusions that are difficult to see to easy to see under magnification. (VS2) Noticeable inclusions that are easy to see under magnification. (SI1)	Near colorless

AAA Quality
Clarity	Color
SI2 / SI3	G-I
Noticeable inclusions that are easy or very easy to see under magnification.	Near colorless

** Diamond weights are approximate and may vary.