Education
Shape
The outline of a diamond when viewed from the top is its shape . Round-cut diamonds are usually the most popular shapes chosen for Jewelry and Rings. Any other diamond shape is called a Fancy-cut which include; Pear, Oval, Princess, and Radiant.

Color
Diamond color is graded on a D (colorless) to Z (light yellow) scale. The less color present in a diamond, the more rare it is, which in turn makes the value higher. The majority of diamonds used show very little to no color to the untrained eye.
Rubin
Brothers