Become an expert using the same criteria as leading gemological labs. In selecting a diamond, the rarity, value and beauty is determined by the four factors mentioned above, called the 4C's: Carat Weight , Color , Clarity , and Cut (proportions & finish). Today, many consumers are aware of the 4C's, however, understanding how they determine value is important to discover what appeals to you in selecting a diamond, and getting the most for your money.
Learn about diamonds to help you make a informed decision when choosing your masterpiece by clicking on the categories below to view a more detailed description of the 4 C`s...
Cut gives the diamond its brilliance. Of the four C's, it's the only one dependent on a human touch. Using precise mathematical formulas, the cutter transforms a diamond in the rough into a sparkling jewel that reflects and refracts light.
The most widely used system for grading a diamond's clarity was developed by the GIA (Gemological Institute of America). Each grade and description was developed so that trained gemologists all over the world working with a ten-power magnification could all give a diamond the same grade.
Carat weight refers to the size of the diamond. Based on a standard unit of measure, one carat is divided into 100 points. The term originated from carob seeds that were used to balance scales in ancient times.
The most desirable diamonds are colorless because the absence of color enhances the diamond's ability to reflect a rainbow of color. Diamonds are graded on a scale of D (almost clear white) to N-Z.