The shape of a diamond can play an important role in determining its price. For example: ♦ A 0.07-carat square may cost up to 20% more than a round diamond of the same weight, color, and quality.
♦ A 1-carat colorless round diamond might cost 15%-30% more than a one-carat square diamond of the same color grade and quality.
♦ A 1-carat intense-yellow round diamond can cost from 10 % to over 100 % more than a radiant with the same weight and color grade, depending on the stones and the dealer sell...