How can diamond inclusions affect a diamond's value, and what are some common types of inclusions?

Diamond inclusions refer to internal characteristics that are present within a diamond. Inclusions can affect a diamond's value and appearance, as well as its durability. The size, location, and type of inclusion are all factors that determine the effect on a diamond.

One of the most common types of inclusions is a feather, which refers to a crack or fracture within the diamond. Feathers can vary in size and shape, and larger feathers can have a greater impact on a diamond's value. Another type of inclusion is a crystal, which can appear as a small, dark spot within the diamond. Crystals are often caused by mineral deposits that were present when the diamond was formed.

Other types of inclusions include clouds, which are clusters of small inclusions, and needles, which are long, thin inclusions that resemble needles. Pinpoints are small, white inclusions that are usually located in groups, while cavities are larger openings within the diamond that may be filled with other minerals.

In general, the fewer inclusions a diamond has, the more valuable it is. However, some inclusions can add character to a diamond and may be desirable to some buyers. For example, a diamond with a unique inclusion pattern or shape may be considered rare and valuable.

It's important to note that the location of the inclusion within the diamond can also affect its value. Inclusions that are located near the center of the diamond can have a greater impact on its appearance and value, while inclusions near the edge may be less noticeable.

When purchasing a diamond, it's important to have it evaluated by a professional gemologist who can identify and assess the inclusions present. The gemologist will take into consideration the size, type, and location of the inclusions when determining the value of the diamond.