There are four major components to consider when buying that coveted diamond tennis bracelet or princess-cut engagement ring. They are known as the Four C's: Color, Clarity, Cut, and Carat. Understanding these four diamond characteristics will help you wisely decide on the best diamond for you or your loved one.

Color - The Gemological Institute of America (GIA) rates the body color in white diamonds from D (colorless) to Z (light yellow). White is the most popular color when it comes to diamonds, but for those that want to be unique, they are available in yellow, pink, green, blue, orange, even black! However, the best color is really no color at all. Having no color allows the light to pass through the diamond easily, resulting in a vibrant display of rainbow-colored light.

Clarity - To be perfect, a diamond must be free from inclusions, blemishes and other flaws. A clarity grade is determined by the amount of inclusions or blemishes that are in or on the diamond. Inclusions can be other minerals, cracks, feathers or anything trapped inside when the diamond was formed millions of years ago.

Cut -The cut of a diamond references to the diamond's reflective qualities, not the shape. A good cut gives a diamond its brilliance. The angles and finish of any diamond are what determine its ability to handle light, and the price you will pay.

Carat - A carat is the unit of weight by which a diamond is measured. Because large diamonds are found less commonly than small diamonds, the price of a diamond rises exponentially to its size. The carat is the standard unit of weight used for all gemstones. One carat equals .200 grams (or 200 milligrams).

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