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GIA Diamond Grading Scales: The Universal Measure of Quality - GIA 4Cs
The prospect of purchasing a diamond may seem daunting, but through GIA, an unbiased authority on diamonds, you have several handy resources to help you select the highest quality diamond. First up, an overview of the 4Cs: Color, Clarity, Cut, and Carat Weight.
Diamond 4Cs Guide: Carat, Color, Clarity, & Cut Charts| IGI
Learn the Diamond 4Cs with color, clarity, cut, and carat charts. Explore diamond ratings, grading scales, and consumer diamond education from IGI.
GIA Diamond Grading & Reports | GIA 4Cs
Viewed in a standardized environment, every diamond’s color is graded against masterstones. Multiple GIA graders independently evaluate each diamond and use our proprietary grading technology.
Diamond Quality Factors
Diamond professionals use the grading system developed by GIA in the 1950s, which established the use of four important factors to describe and classify diamonds: Clarity, Color, Cut, and Carat Weight.
Diamond Rating & Grading Charts | Diamond Classification
This diamond rating chart can help you choose the right gem. Learn the color and clarity criteria by which diamonds are graded for valuation purposes.
DIAMONDS & DIAMOND GRADING
In this online course, you'll get an in-depth understanding of diamonds, including how to grade their color, clarity, and cut.
Diamond Grading Scale
When you’re buying a diamond, understanding the diamond grading scale is crucial. This scale allows you to evaluate important qualities of a diamond, like its carat weight, cut, clarity, and color. These factors play a significant role in determining the overall value of the diamond.
4 Cs of Diamonds | Diamond Guide, Chart & Order of Importance
This diamond guide explains how the 4 Cs of diamonds — cut, color, clarity, and carat — determine a diamond's quality grade. Learn what to look for when choosing the perfect diamond.
Diamond Grading Process & Quality Scale For Assessment | IGI
Discover the diamond grading process at IGI. Learn about the diamond grading scale, overall grading process & how the diamond quality chart is used for assessment.
Diamond Grading Explained: D/VVS vs H/SI and Why It Matters
Colour in a diamond is graded by comparing the stone, face-down, against a set of master reference stones under controlled lighting. The scale begins at D and ends at Z.
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