A good understanding of diamonds is necessary before you begin shopping. Learning to grade diamonds is really learning about the "four Cs" of diamonds - diamond cut, diamond clarity, diamond colorand diamond carat weight. These are the criteria jewelers and gemologists use when grading diamonds, and they're the ones you'll need to understand to find the right diamond for you.

Not all diamonds are white or colorless. Learn the scoop on colored diamonds. Similarly, not all diamonds are round either. Learn more about heart, pear, oval, marquise, and square diamond at fancy-shaped diamonds

The diamond certificate, which is sometimes called a diamond grading report, is a complete evaluation of your diamond that has been performed by a qualified professional. Each diamond bears its own individual characteristics, which is listed on the certificate. Learn more about diamond certification.

Lastly, learn how to avoid getting ripped off by spotting treated diamonds.