Clarity refers to the amount, size, nature, position and color of a diamond’s natural birthmarks. Diamonds are looked at under 10X magnification and graded based on the visibility of internal inclusions and external blemishes. The standard grading scale ranges from flawless (FL) to imperfect (I3). Very few diamonds in the world are considered flawless; most have some type of inclusion or blemish.
Important Note: The presence of slight inclusions and blemishes can lower the clarity grade and value of a diamond, but have little effect on the diamond’s beauty or durability.