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Diamonds having less color are rarer; therefore, they may cost more. Here you will learn how GIA diamond grades are established, and how those grades affect the diamond's price. The quality and value of a diamond is defined according to the 4Cs: carat, colour, clarity and cut. After many years as a jeweler, Shipley had noticed that the jeweler industry was lacking the standardization and scientific background that many other industries had.
This reason alone made it difficult to get the accurate value of a certain diamond before it was purchased. In the 1800s, diamonds were sometimes graded using the letters A, B, and C to signify their quality. Diamond grading is a complex process, part science and part art. De Beers adopted the concept and language of the 4 C’s grading system for use in their advertising campaigns, popularizing the grading system for the general public.To this day, jewelers and the GIA use this same diamond grading system. GIA is a nonprofit 501(c)(3) organization. The 4 Cs of diamond quality are the universally recognized diamond grading system still in use today. Perhaps Bert Krashes of the GIA summed it up best when told The Goldsmith that the article “only reaffirmed that, in its present state, diamond grading is not a precise science.” The IGI, EGL, and HRD use similar grading terminology to the GIA, but the AGS, another top laboratory in the industry, uses a very different grading system. The AGS grades diamonds on a scale from 0-10 in terms of color, clarity, and cut. If you are looking to get more accurate information regarding the grading of your diamond, you can have your diamond certified by a laboratory such as the GIA, EGL, AGS, or HRD. For a fee, these laboratories will assess your diamond and provide a report for your stone.Gemologists will also look at fluorescence, or whether a diamond will emit visible light under ultraviolet light.
The criteria for diamond grading, most respected internationally, was developed by the Gemological Institute of … However, the difference is that the gradings on a GIA report will be much more accurate than a jewelers. And how did this seemingly age-old tradition start? While no diamond is perfectly pure, the closer it comes, the higher its value.Use of this site signifies your agreement to its terms of use. Learn how the diamond grading system has evolved and how it works today:Each diamond is assigned a clarity grade, based on the position, number, and visibility of flaws and blemishes:Diamond clarity refers to how flawless a diamond is.Diamonds are some of the most sought-after and prized possessions in the world. But why is it that we wear engagement rings? Adhering to the AGS Diamond Grading Standards, AGS Laboratories is dedicated to offering diamond grading reports that provide consistency and accuracy based on science.When writing the grades of a diamond using the AGS Scale, diamond Cut grade is first, then diamond Color, Clarity, then Carat Weight—in that order.The AGS 0–10 grading scale is easy to understand: the highest possible grade is zero, and the lowest is 10.So, a diamond with a color grade of 3 has less color than a diamond with a color grade of 5.