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Diamond Clarity

Most diamonds contain a few minor flaws or “inclusions” that effect their clarity.

An inclusion is any spot, scratch, bubble or line that occurred when the diamond was being formed deep in the earth.

Most inclusions are not visible to the naked eye, so gem laboratories use a magnifying glass (at 10x magnification) to determine the amount, size, position, nature, and color of the inclusions.

The clarity of diamonds range from “flawless” to “included”.

You should avoid diamonds with visible flaws that affect their overall beauty or durability, but it is not necessary to select a flawless diamond. To make sure that your diamond has no visible flaws, we recommend stones with a grade of SI2 or higher. However, some SI diamonds can provide great value as many are virtually flawless to the naked eye.


  • FL, IF (Flawless, Internally Flawless): These rare diamonds contain no flaws (FL) or only very insignificant blemishes (IF) when viewed under 10x magnification.
  • VVS1, VVS2 (Very, Very Slightly Included): The tiny inclusions in these stones are very difficult to see, even at 10x magnification.
  • VS1, VS2 (Very Slightly Included): These stones contain inclusions that are visible only under 10x magnification.
  • SI1, SI2 (Slightly Included): Diamonds at this level have inclusions that are clearly visible under magnification and may be visible without magnification.
  • I1, I2, I3 (Included or Imperfect): In these diamonds, the inclusions are clearly visible without magnification.
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