Watch GIA’s 4Cs video: GIA Diamond Color Grading to follow a diamond through the GIA color grading process. But do you know how a diamond actually gets assigned a color grade? Just as GIA developed the D-to-Z color scale, it also established the grading methods and best practices for evaluating diamond color. Now that you’ve seen the official GIA Color Scale and worked with the interactive diamond color chart, you have a better understanding of the grading terms and how these relate to diamond color. Ideally, pair diamond colors of D, E, or F with clarity grades of F (flawless), IF, VVS1, or. Within the D-to-Z range, when all other value factors are equal, colorless diamonds are the most valuable.ĭownload the GIA app to access the Official GIA Color Scale and take it diamond shopping to help you identify the differences in a color grade. Diamond Color and Recommendations for Other Diamond Qualities. The color evaluation of most gem-quality diamonds is based on the absence of color. Do you notice the subtle color change from one grade to another? Move the bottom slider left and right on the color scale to become familiar with the level of colorlessness associated with each grade. This interactive color scale tool can help you see the differences in color. That said, these seemingly subtle distinctions can significantly affect diamond quality grading, and of course, price. With diamonds, color distinctions are so subtle that they are often not noticeable to the untrained eye. The 23 color grades on the GIA Color Scale (or diamond color chart) are subdivided into five subcategories, which are: colorless (D-F) near colorless (G-J) faint (K-M) very light (N-R) and light (S-Z).Įach letter grade has a clearly defined narrow range of color appearance. The GIA scale begins with the letter D, representing colorlessness, and continues with increasing presence of color to the letter Z, representing light yellow, light brown or light gray. GIA developed the definitive diamond color scale or chart in the early 1950s, a time when there were a lot of different and subjective terms in the marketplace for describing a diamond’s color: white, blue white, AAAA, for example. In this post, you can learn about and download the official GIA Color Scale, work with an interactive diamond color chart to see the relationship between grades and colors, and watch a useful GIA Diamond Color Grading video to see how GIA evaluates diamond color. (K, L, M) The absence of color is what determines the diamonds grade and value, as well as has a significant impact on its appearance.
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