What are "inclusions" in diamonds?

Inclusions refer to internal flaws or characteristics within a diamond that can influence its clarity. These may include tiny crystals, gases, or other materials trapped within the diamond during its formation deep within the Earth. When viewed under magnification, these inclusions can be seen as imperfections that can impact the overall appearance and value of the diamond.

Understanding inclusions is critical because they can affect how light passes through the diamond and how it sparkles. Although inclusions can diminish a diamond's clarity grade, they can also create unique characteristics that some gem enthusiasts appreciate. By assessing inclusions, gemologists can provide a better understanding of a diamond's quality and authenticity.