Like people, every diamond is individual and unique. One way diamonds are different from each other, is the minute traces of crystals that may get trapped during the crystallization phase of a diamonds growth. These minute crystals are called inclusions.

 Inclusions have been described as natures fingerprints. These fingerprints aid gemologists in determining the rarity of each diamond. Clarity is the term used to describe the number, color, size and placement of such inclusions.

Inclusions can affect the beauty of a diamond when they are so numerous or large that they become visible to the naked eye. These large inclusions can impede the flow of light (reflections) in a diamond making it sparkle less. Diamonds that have no eye visible inclusions will reflect more light, be more rare and more valuable. Diamonds that are flawless have no visible inclusions to a trained grader under magnification making them the most rare and valuable.