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Diamond clarity is a crucial factor in assessing the quality and value of a diamond. It refers to the presence or absence of inclusions and blemishes, which are natural characteristics formed during the diamond's formation process deep within the Earth. Inclusions are internal flaws, while blemishes are external imperfections. The clarity of a diamond is determined by the number, size, nature, and location of these imperfections.

The GIA Diamond Clarity Scale:

The Gemological Institute of America (GIA) developed the most widely used diamond clarity-grading scale, which consists of six categories, further divided into a total of 11 specific grades. Let's explore each category in detail:

  1. Flawless (FL):

    • Diamonds in this category have no visible inclusions or blemishes when examined under 10x magnification.
    • These diamonds are exceptionally rare and command premium prices due to their perfect clarity.
  2. Internally Flawless (IF):

    • IF diamonds have no visible inclusions when examined under 10x magnification, but they may have surface blemishes.
    • While they may have external imperfections, their internal clarity is flawless.
  3. Very, Very Slightly Included (VVS1 and VVS2):

    • Inclusions in VVS diamonds are extremely slight and difficult for even skilled graders to detect under 10x magnification.
    • These diamonds have exceptional clarity, with minor inclusions that do not affect their overall appearance or brilliance.
  4. Very Slightly Included (VS1 and VS2):

    • VS diamonds have inclusions that are observable under 10x magnification but are characterized as minor.
    • While these inclusions may be visible, they typically do not impact the diamond's beauty or transparency to the naked eye.
  5. Slightly Included (SI1 and SI2):

    • SI diamonds have noticeable inclusions when viewed under 10x magnification.
    • These inclusions may be visible to the naked eye, especially in the case of SI2 diamonds, but they do not significantly affect the diamond's overall appearance or structural integrity.
  6. Included (I1, I2, and I3):

    • Included diamonds have obvious inclusions that are visible under 10x magnification and may affect transparency and brilliance.
    • These diamonds often have inclusions that are visible to the naked eye and may detract from their overall beauty and value.

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