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The visual appearance of existing internal characteristics of a diamond called inclusions and surface imperfection popularly know as blemishes, is referred as the clarity of a diamond. It is one of the four pillars of 4 C’s. Inclusions in a diamond can be made by foreign particles or another diamond crystal or by naturally any structural imperfections like tiny cracks. Flawless or nearly flawless diamonds are very rare and very expensive Preciousglow.com provides with the some of the clearest diamonds. Learn more how to choose the right grade of clarity for the perfect diamond ring of your choice
Diamond clarity is affected by the number, size, color, relative location, orientation, and visibility of inclusions. The impurities and the blemishes act as a measure for the clarity of a diamond. A diamond which has no impurities or high grade of inclusions hence no obstruction for the passage of the light is considered to be flawless. The clarity of the diamond is determined under 10x magnifications. The diagram below shows the grade of clarity.
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| Flawless - No flaws internally or externally. |
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| Internally Flawless - No flaws internally. This category of diamonds is very rare to find and are valued highly. |
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| VVS1, VVS2 - Very, Very Slightly Included: Very difficult to see inclusions under 10x magnification. These kinds of diamonds are of high quality. |
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| VS1, VS2 - Very Slightly Included: Inclusions are not visible to the naked eye. This category is less expensive than the VVS1 or VVS2 grades. |
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| SI1, SI2 - Slightly Included: Inclusions are visible under 10x magnification, SI clarity diamonds are best value buy as the inclusions are not visible to bare eyes. The prices for this category of diamonds are very reasonable as compared to prices of the VS2 clarity and up grades. |
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| SI3 - Slightly Included-EGL: SI3 is an EGL grade and is not certified by GIA or other gemological institutions. It may be graded by GIA as either SI2 or I1. SI3 diamonds don’t have any black inclusions or cracks visible to the naked eye, but they might have some very minor white inclusions which are visible to the naked eye. |
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| I1 - Included: an I1 clarity diamond will have a visible flaw which can be seen with unaided eye. In case your budget is limited and you can only afford SI3 or I1 clarity diamond then you should carefully examine before making the purchase. |
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| I2, I3 - Included: These inclusions in this category of diamonds will be visible to the naked eye, and will also have many black spots from the black inclusions and would appear cloudy from the white inclusions, feathers and cracks. |
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