Diamonds you buy from Affinity are graded according to the GIA, the worldwide standard for grading gems. Most diamonds contain internal “birthmarks”, called inclusions, which make each diamond individual. There are 11 grades of diamonds, ranging from the rarest Flawless (FL) which contain no inclusions when viewed under 10x magnification, to I3, where the diamond contains inclusions easily apparent to the naked eye. Master cutters take into account these inclusions when shaping the diamond, and they don’t endanger the beauty or durability of the diamond. Diamonds graded SI2 and above are generally considered “eye clean” with these marks only visible under magnification. When you buy a diamond at Affinity, one of our diamond experts will show you examples of different grades to help you choose the perfect diamond.


Diamond Clarity Grading Scale

Image Clarity Grade Scale Description On Inspection through 10x magnification
Flawless F Flawless Clear Stone, no inclusions or blemishes. Exceptional and beautiful diamonds.
Internally Flawless IF Internally Flawless No inclusions and only insignificant surface blemishes. Rare and beautiful diamonds.
Very, Very Slightly Included – 1 & 2 VVS1 – VVS2 Very, Very Slightly Included – 1 & 2 Tiny inclusions, which are extremely difficult to find, even under 10x magnifications. An excellent quality diamond.
Very Slightly Included – 1 & 2 VS1 – VS2 Very Slightly Included – 1 & 2 Minor inclusions, which are difficult to see under 10 x magnification. These stones are less expensive than the VVS1 or VVS2 grades.
Slightly Included – 1 & 2 SI1 – SI2 Slightly Included – 1 & 2 Inclusions, which are easy to see under 10 x magnification. A good diamond value.
Included – 1, 2 & 3 I1 – I2 – I3 Included – 1, 2 & 3 Inclusions, which are easy to see under 10 x magnification and sometimes, may be visible with the unaided eye. A good diamond value. Generally I3 grade is not used for jewelry purposes and mostly used in industrial applications.