A diamond’s cut is the most critical of the 4Cs because it’s what gives the diamond its brilliance, sparkle, and fire – the diamond’s three main attributes. When people talk about “brilliance,” they are referring to the amount of light a diamond reflects. “....
Color is the second most significant grading aspect of buying or selling diamonds. Diamonds are graded based on their overall body color, on a scale developed by the GIA. This scale runs from "D" to "Z". Note in the charts below how the difference between any two colors can be very subtle....
The least important diamond grade is clarity. Unfortunately, it is what many jewelers claim is most important, because it is the easiest to demonstrate. Anyone can put a diamond under a microscope and see if it has inclusions. It takes gemological knowledge to cut and/or color grade a diamond. ....
