Powers Jewelry Designers want you to know everything you need to know in order to make the best choice buying certified diamonds in every color grade or color variation. Knowing the facts of GIA diamond certification will get you the best diamond for your dollar every time. The GIA color grading scale is straightforward and easy to understand when you know a couple of things;
Most diamonds found in jewelry stores run from colorless to near colorless, with slight hints of yellow or brown. Exotic color diamonds such as pink or blue are rare. The most available and affordable fancy colors are fancy yellows. At Powers Jewelry Designers most of our diamonds are colorless to near colorless yet we typically do have a number of exotic colored diamonds for you to choose from. Colored diamonds follow the same GIA grading system for cut, carat and clarity.
The GIA color grading scale for diamonds is the diamond industry standard. Beginning with the letter D, representing colorless, and continuing with increasing presence of color to the letter Z, or near colorless. Each letter grade has a clearly defined range of color appearance. Diamonds are color-graded for certification by comparing them to stones of known color under controlled lighting and precise viewing conditions.
Many of these color distinctions are so subtle as to be invisible to the untrained eye. Slight differences can make a very big difference in diamond quality and price.
Before GIA developed the D-Z Color Grading Scale, a variety of other systems were loosely applied. These included letters of the alphabet (A, B and C, with multiple A's for the best stones), Arabic (0, 1, 2, 3) and Roman (I, II, III) numerals, and descriptions such as "gem blue" or "blue white." The result of all these grading systems was inconsistency and inaccuracy. Because the creators of the GIA Color Scale wanted to start fresh, without any association with earlier systems, they chose to start with the letter D. In diamonds the letter D means the finest quality.
|GIA Color Scale|
|D, E, F, G, H, I|| Colorless
|J, K, L,|| Near Colorless
|N, O, P, Q, R||Very Light Yellow|
|S, T, U, V, W, X, Y, Z||Light Yellow|