GIA Diamond Grading Scales: Universal Quality Measure | GIA 4Cs
Mar 14, 2013 · 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 …
Diamond Rating & Grading Charts | American Gem Society
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.
Diamond Size Chart, Size of Diamonds by MM - Brilliance.com
Not sure the size of a particular diamond based on its carat weight? Our helpful guide breaks down diamond sizes by diamond shape and millimeter (mm) size.
Diamond Chart - Diamond Valuation - Diamond Rating System
Below is a diamond chart with a rating system that will help you to evaluate stones of specific color and diamond clarity combinations. This diamond chart compares diamonds starting with the most prized …
4 C's of Diamonds | Diamond Guide, Chart & Order of Importance
This diamond guide explains how the 4 C's of diamonds — cut, color, clarity, and carat — determine a diamond's quality grade. Learn what to look for when choosing the perfect diamond.
Diamond Color Chart | GIA Diamond Color Grading Scale
Nov 12, 2025 · To provide shoppers with an understanding of each diamond’s color level, grading entities like the Gemological Institute Of America (GIA) use a diamond color chart to judge diamonds …
Diamond Prices Chart: 2025 Value & Worth - Petra Gems
Mar 27, 2023 · The diamond prices chart indexes presented below reflect average wholesale and retail prices for round cut diamonds based on carat weight, clarity, color, ideal cut, and no fluorescence.