Carat is the size of the diamond. If two diamonds are the same exact grade, the larger one will be more expensive.

The color of a diamond also determines the price. Whiter diamonds are more expensive. K is the lowest, yellowest graded diamond we have in supply, and D is the whitest, highest grade color commercially sold.

The clarity of a diamond is a measure of how many imperfections are in the diamond, called inclusions. The less inclusions found in a diamond, the higher its grade is. In this aspect SI2 is considered low grade with very large defects, and FL being the highest grade. FL is considered Loop Clean with no visible imperfections whatsoever. FL diamonds are extremely rare.

Proper cut proportions are crucial to bringing out the beauty in diamonds by reflecting the light inside in a beautiful manner. Excellent is the highest quality and most expensive cut. If the cut is too far from the ideal it will not look as good