The clarity of a diamond relies heavily on the visual appearance. Inclusions and surface imperfection all play a part in the overall clarity of the diamond. Inclusions refer specifically to the internal characteristics of a diamond and that is part of the grading scale.
Any presence of foreign material or crystals from another diamond, for example, as well as tiny cracks that give off a clouded appearance. The amount of inclusions and blemishes, size of them, location on he crystal itself, coloring and visibility are all factored in to the relative clarity of the diamond itself. After a thorough examination process utilizing ten times magnification, the diamond is assigned a clarity grade. Grading is a scale from Flawless to Included, in the following order from best to worst quality: Flawless(no inclusions or blemishes detected under intense magnification), Internally Flawless(No inclusions, small blemishes visible on surface), Very, Very Slightly Included(small inclusions difficult to be seen even under intense magnification), Very Slightly Included(Minor Inclusions), Slightly Included (obvious inclusions), Included(very clearly visible inclusions).
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Here is a chart showing how diamonds are graded for clarity. |
Flawless - No flaws internally or externally. |
Internally Flawless - No flaws internally. This category of diamonds is also very rare and valued highly. |
VVS1, VVS2 - Very, Very Slightly Included: Very difficult to see inclusions under 10x magnification. These diamonds are high quality. |
VS1, VS2 - Very Slightly Included: Inclusions are not visible to the naked eye. This category is less expensive than the VVS1 or VVS2 grades. |
SI1, SI2 - Slightly Included: Inclusions are visible under 10x magnification. This level of clarity is considered by many to be the best value buy because the inclusions are not visible to the naked eye. The prices for these diamonds are notably lower compared to those in clearer categories. |
SI3 - Slightly Included-EGL: This is a category of clarity that is promoted by and is not certified by the Gemological Institute of America or other gemological institutions. Diamonds in this category are likely to be graded by GIA as either SI2 or I1. EGL distinguishes these diamonds as having no black inclusions or cracks that are visible to the naked eye, but they may possess some very minor white inclusions which are visible to the naked eye. |
I1 - Included: an I1 clarity diamond will have a visible flaw which can be seen with the unaided eye. If your budget is limited and you can only afford diamonds in the SI3 or I1 clarity, be sure to examine them under 10X magnification yourself before making the purchase. It will help you decide which one to buy. Any reputable jeweler would be happy to show you how to use a magnifier. |
I2, I3 - Included: The inclusions in this category of diamonds will be visible to the naked eye. They will have many black spots from the black inclusions and may appear cloudy from the white inclusions and cracks. |
The clarity of a diamond relies heavily on the visual appearance. Inclusions and surface imperfection all play a part in the overall clarity of the diamond. Inclusions refer specifically to the internal characteristics of a diamond and that is part of the grading scale.
Any presence of foreign material or crystals from another diamond, for example, as well as tiny cracks that give off a clouded appearance. The amount of inclusions and blemishes, size of them, location on he crystal itself, coloring and visibility are all factored in to the relative clarity of the diamond itself. After a thorough examination process utilizing ten times magnification, the diamond is assigned a clarity grade. Grading is a scale from Flawless to Included, in the following order from best to worst quality: Flawless(no inclusions or blemishes detected under intense magnification), Internally Flawless(No inclusions, small blemishes visible on surface), Very, Very Slightly Included(small inclusions difficult to be seen even under intense magnification), Very Slightly Included(Minor Inclusions), Slightly Included (obvious inclusions), Included(very clearly visible inclusions).
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Here is a chart showing how diamonds are graded for clarity. |
Flawless - No flaws internally or externally. |
Internally Flawless - No flaws internally. This category of diamonds is also very rare and valued highly. |
VVS1, VVS2 - Very, Very Slightly Included: Very difficult to see inclusions under 10x magnification. These diamonds are high quality. |
VS1, VS2 - Very Slightly Included: Inclusions are not visible to the naked eye. This category is less expensive than the VVS1 or VVS2 grades. |
SI1, SI2 - Slightly Included: Inclusions are visible under 10x magnification. This level of clarity is considered by many to be the best value buy because the inclusions are not visible to the naked eye. The prices for these diamonds are notably lower compared to those in clearer categories. |
SI3 - Slightly Included-EGL: This is a category of clarity that is promoted by and is not certified by the Gemological Institute of America or other gemological institutions. Diamonds in this category are likely to be graded by GIA as either SI2 or I1. EGL distinguishes these diamonds as having no black inclusions or cracks that are visible to the naked eye, but they may possess some very minor white inclusions which are visible to the naked eye. |
I1 - Included: an I1 clarity diamond will have a visible flaw which can be seen with the unaided eye. If your budget is limited and you can only afford diamonds in the SI3 or I1 clarity, be sure to examine them under 10X magnification yourself before making the purchase. It will help you decide which one to buy. Any reputable jeweler would be happy to show you how to use a magnifier. |
I2, I3 - Included: The inclusions in this category of diamonds will be visible to the naked eye. They will have many black spots from the black inclusions and may appear cloudy from the white inclusions and cracks. |
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