The clarity of a diamond refers to the presence (or lack) of imperfections.

Generally, the more imperfections (or inclusions) a diamond has, the lower the clarity. But number of inclusions is not the only measure of diamond clarity. Other inclusion factors that affect clarity include:

  • Size - How large the inclusion is.
  • Number - How many inclusions are present
  • Position - Where the inclusion is located. For instance, it may be more hidden in the inside lower facets, or more obvious on the surface of the diamond.
  • Nature - Based on their size and location some inclusions may affect the durability of the diamond.
  • Relief - Based on color, some inclusions may be more apparent than others. For example black inclusions are much more visible than white or clear inclusions.

The American Gem Society (AGS) has a scale to measure diamond clarity, ranging from 0 (flawless) to 10 (included).

Most inclusions are not visible to the naked eye. Use our clarity magnifier below to see representations of the various levels of diamond clarity.

The video below covers the basics of diamond clarity.