Diamonds completely free from internal flaws, or inclusions, are very rare and highly valued. Clarity is graded based on the number, location, size, and type of the inclusions found in a diamond. Kenny G and Company has some of the clearest diamonds available. Learn how to choose the best grade of clarity for your diamond at the best price. FL, IF - Flawless: No internal or external flaws. Internally Flawless: No internal flaws. Very rare and beautiful diamonds. VVS1, VVS2 - Very, Very Slightly Included: Very difficult to see inclusions under 10x magnification. An excellent quality diamond. VS1, VS2 - Very Slightly Included: Inclusions are not visible to the unaided eye. Less expensive than the VVS1 or VVS2 grades. SI1, SI2 - Slightly Included: Inclusions are visible under 10x magnification, and in SI2 diamonds, inclusions may be visible with the unaided eye. A good diamond value. I1, I2, I3 - Included: Inclusions are extremely visible.

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