White Diamond Color Grading

The gia gemological institute of america has standardized diamond color grading on a d to z scale.

White diamond color grading.

The gia grades diamonds on a scale of d colorless through z light color. Red stones are the most rare of the fancy colored diamonds. Instead of a letter the grade for fancy color diamonds go from faint to fancy deep the color scale is as such. From this vantage point we examine the diamonds from the side profile.

These classes of diamond have different color grading standards. The standards described here are strictly for white diamonds. In fact diamonds are found in almost any naturally occurring colour including grey white yellow green brown and pink. Some general info about diamond colour part of diamond valuation is determined by the absence of colour.

Diamonds of all other colors such as blue pink and brown are known as fancy colored diamonds. True fancy colored diamonds such as yellows pinks and blues are graded on a separate color scale. Color is graded in a different way for fancy color diamonds. Whereas fancy colored diamonds are the vivid shades like pink green and yellow.

Similar to the process for grading colorless diamonds a diamond s fancy color is graded by comparing it to master stones of predetermined color. All d z diamonds are considered white even though they contain varying degrees of color. While white diamonds receive a grade of d to z based on the yellow or brown tint present fancy color diamonds are graded on the intensity of its color. The majority of mined diamonds fall between white and pale yellow or brown.

While comparing them with master stones of previously graded diamonds in the same spectrum. Please note white diamonds refer to colorless or slightly yellowish diamonds. What is known as the normal color range. Only certified grading professionals should determine a diamond s colour grade.

The gia white diamonds color grade scale is the industry standard the gemological institute of america gia color scale is the industry standard for diamond grading. All white diamonds searches are based on james allen s database. Gia color grading terms for white diamonds. Naturally occurring diamond colors include gray white blue yellow orange red green olive pink purple brown and black.

Diamonds of d k and z. As you can see in a classic one carat diamond while a d color diamond weighing 1 carat costs 9 500 a similar diamond with a color grading of g recommended will cost approximately 6 750. Diamonds of more intense color usually yellow but in some cases red green or blue are termed fancy color diamonds. When grading diamonds for color they are set on a white tray with the bottom culet pointing up.