A diamond's value is determined by four factors (the Four C's) Carat weight, Color, Cut and Clarity so before you even start diamond shopping, you should have a full understanding of these factors.

Carat weight:

The weight of a diamond is measured in carats. Since larger diamonds are more rare than smaller diamonds, diamond value tends to rise exponentially with carat weight.

Color:

Colorless diamonds are most highly valued and are priced accordingly. Other diamonds have a slight yellow tint, and some can even have a noticeable dirty brownish tint. Rainbow Jewelers offers only the highest grades of color, as slight yellow or brown tints can diminish the amount of fire in a diamond.

Cut:

The cut of a diamond has a tremendous affect on its brilliance. Even if the diamond has perfect color and clarity, a poor cut can make a diamond look dull. Rainbow Jewelers carries only the highest grades of diamond cut, which present the most beautiful brilliance.

Clarity:

Diamonds completely free from internal flaws, or inclusions, are very rare and highly valued. Clarity is graded based on the number, location, size, and type of the inclusions found in a diamond. Rainbow Jewelers has some of the clearest diamonds available.