2. Diamond Clarity

Diamond clarity is an indication of its purity. In all diamonds, except the most rare, diamond grades are determined by tiny traces of minerals, gasses, or other elements that were trapped inside during the crystallization process. The flaws that affect the diamond clarity and stop it from becoming a certified diamond are called inclusions. Virtually all natural diamonds that become certified diamonds contain identifying characteristics, yet many are invisible to the naked eye. Under the scrutiny of a jeweler's 10x-magnifying loupe or microscope and learned diamond education, natural phenomena -- called inclusions -- may be seen. These are nature's birthmarks that determine diamond grades, and they may look like tiny crystals, clouds, or feathers.

Diamond Clarity Chart