The less the color, the more valuable the diamond. The clarity refers to the amount of flaws in the diamond. There are two types of naturally occurring flaws. The internal markings are called inclusions and the external markings are called blemishes . These markings interfere with the passage of light through a diamond, and affect the price, if not beauty of a diamond.
Most diamonds contain some inclusions that can only be seen under magnification.
The magnifying instrument that is used to examine and evaluate diamonds is called the jeweler's loupe. I3 Inclusions are very visible to naked eye Carat is a measure of weight for diamonds. One point is one 100th of a carat. Continuum Internet Publishing Services Inc. All rights reserved.