Gia Yellow Diamond Scale

The color grading system is based on the alphabet beginning with the letter d and running all the way through z.

Gia yellow diamond scale.

Color scale and grades. In other words yellow diamonds are fully saturated with yellow and carry no traces of whiteness whatsoever. The radiant cutting style helps intensify a fancy colored diamond s color. For example yellow diamonds occur in a wide range of saturations while blue diamonds do not.

The ags s scale is graduated from 0 to 10 colorless to elaborate yellow while the gia s is from d to z colorless to light yellow. The presence of nitrogen causes a diamond to appear yellow. The diamond color scale was invented by the gia many years ago and is now the leading standard used worldwide. About the gia s color scale.

All d z diamonds are considered white even though they contain varying degrees of color. This is why even though moving one letter one grade down the diamond color chart will cause a sensible price depreciation it is customary to divide the diamond scale into color groups. The simplified scale below represents how a fancy yellow diamond would be graded. Subtle color differences impact the value of a fancy colored diamond.

Gia interactive color scale. The intensity of the yellow color is dependent upon varying amounts of nitrogen. Fancy light fancy fancy dark fancy deep fancy intense and fancy vivid. The scale starts at fancy light yellow and moves toward fancy vivid yellow as the saturation of color intensifies.

True fancy colored diamonds such as yellows pinks and blues are graded on a separate color scale. If you would like to know more regarding fancy yellow diamonds or have any questions please call one of our graduate gemologists at 800 747 7552. The gia grades diamonds on a scale of d colorless through z light color. Diamonds are rated on a color scale developed by the gia the world s premier diamond grading nonprofit.

As more nitrogen atoms bond to the crystal structure the diamond takes on a more yellow appearance. Each letter grade has a clearly defined narrow range of color appearance. The gia system for color grading fancy color diamonds is designed to accommodate the fact that not all colored diamonds have the same depth of color. The gia colored diamond grading system assigns yellow diamonds one of six color grades.

Diamonds with more yellow than gia s z grade are considered fancy color. The 23 color grades on the gia color scale or diamond color chart are subdivided into five subcategories which are.