Most diamonds have flaws, though not all of them are apparent to the naked eye, or even visible under 10x magnification. The types of inclusions that occur inside of a diamond include air bubbles, cracks, and incorporation of non-diamond minerals. Surface blemishes include scratches, pits, and chips.

S.B. Diamonds refers to the GIA Diamond Clarity Scale, which grades diamonds under 10x magnification. This scale divides diamonds into six categories, four of which have subcategories, for a total of eleven specific grades. Diamonds with few or no flaws, which are quite difficult to obtain,are assigned a higher value than those with less clarity.

FFlawless: No internal or external flaws. Extremely rare.
IFInternally Flawless: no internal flaws, but some surface flaws. Very rare.
VVS1-VVS2Very Very Slightly Included (two grades). Minute inclusions very difficult to detect under 10x magnification by a trained gemologist, and not detected on the unmagnified diamond’s appearance.
VS1-VS2Very Slightly Included (two grades). Minute inclusions seen only with difficulty under 10x magnification, and not detected on the unmagnified diamond’s appearance.
SI1-SI2Slightly Included (two grades). Minute inclusions more easily detected under 10x magnification, and not detected on the unmagnified diamond’s appearance.
I1-I2-I3Included (three grades). Inclusions visible under 10x magnification AS WELL AS to the human eye. We do not recommend buying diamonds in any of these grades.

gia clarity diagram examples

  • VVS2

  • VS2

  • SI2

  • I2