How can we measure the value of a diamond? It's based on what is typically called the 4 C’s. These four C’s are the diamond’s carat weight, clarity, color, and cut.
The more a diamond weights the more its worth. A 2.0 ct. diamond weights much more than a 0.75 ct. diamond.
The clarity of a diamond is tasing about the diamonds inclusion. Inclusion are the spots you can see through a diamond. The more you can clearly see the less it cost.
The color of a diamond is categorize from D to Z. The more color it has (Closer to Z) the less it values. The less color, the more it shines, the more it cost.
The ideal cut of a diamond will reflect as much light as possible out of the top of the crystal.The better the effect the more it cost.