GIA Diamond Grading Scales: The Universal Measure of Quality
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 quality diamond. First up, an overview of the 4Cs: Color, Clarity, Cut, and Carat Weight.
Diamond Color Chart: The Official GIA Color Scale
Jul 8, 2015 · 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.
Home | GIA 4Cs
Created by GIA, the 4Cs are the global standard for assessing the quality of diamonds and allow you to compare one diamond to another. In brief, the 4Cs are: Color: Color is graded on a D-to-Z scale, with D meaning that a diamond is completely colorless and Z meaning that a diamond has light yellow or brown color.
GIA Cut Grading System Charts and Booklets
How to Use the GIA Cut Grading Charts. Downloadbable charts and booklets to help you understand the GIA Cut Grading System and how to make the best use of it in your business.
GIA 4Cs Clarity
Using the GIA International Diamond Grading System™, diamonds are assigned a clarity grade that ranges from flawless (FL) to diamonds with obvious inclusions (I 3). Every diamond is unique. None is absolutely perfect under 10× magnification, though some come close.
GIA Facetware®
GIA Facetware ® is a free online service that allows you to access GIA's database of more than 38.5 million diamond proportion sets so you can estimate a diamond's cut grade.
Most Precious Diamonds, - Gemological Institute of America
Know what you are getting in the moments that matter most. Each GIA-graded diamond comes with a GIA report that details important quality information about the diamond, including the 4Cs.