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SI1 Diamonds

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These results are the closest match to your search. Use the filters at the top of the page to refine your results.

These results are the closest match to your search. Use the filters at the top of the page to refine your results.

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Looking for the perfect diamond?

We're happy to help

An SI1 diamond is a slightly included stone on the clarity scale. Otherwise known as purity, a diamond’s clarity is a grade that refers to how inclusion-free it is or is not. Inclusions are small carbon deposits or other blemishes inside of a diamond's internal structure or on its surface that can affect a diamonds ability to shine brightly. While many diamonds may be slightly included, SI1 diamonds' inclusions are not visible to the naked eye. The only way to view the inclusions of an SI1 diamond is to look at it under at least 10x magnification with a jeweler's loupe.


SI1 diamonds are an excellent choice as they are eye-clean and offer excellent brilliance and sparkle. Choose an SI1 diamond that is well-graded in other categories such as cut, color, and carat and set it into a Brilliant Earth ring that matches your style.