Diamond Grading Diamond Jewelry 101

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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.

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 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.

GIA Diamond Grading
The GIA Diamond Grading Report. This report uses the universally accepted GIA standards to determine a natural diamond’s shape, color, clarity, cut and carat weight – as well as proportions, finish and treatments.

Understanding the 4Cs of Diamond Quality | Diamond Factors | GIA 4Cs
GIA’s diamond grading provides the consistent and unbiased results that the global diamond industry and diamond customers trust. Without strict standards, the characteristics, quality and value of a diamond would be left open to interpretation.

Colored Diamonds: Diamond Grading & Reports | GIA 4Cs
The GIA Diamond Grading Report. This report uses the universally accepted GIA standards to determine a natural diamond’s shape, color, clarity, cut and carat weight – as well as proportions, finish and treatments.

Analysis & Grading - GIA.edu
D-to-Z diamonds, offering details such as estimated total carat weight, color and clarity ranges. Each report includes metal testing, item weight, markings, and a photo of the jewelry.

Home | GIA 4Cs
For nearly 100 years, GIA has helped advance the global diamond industry through innovation and education. A GIA Diamond Grading Report is more than the standard in diamond evaluation—it is the internationally trusted source for diamond quality reporting by jewelers, museums and auction houses.

How GIA Grades Diamonds
Learn about GIA's processes to ensure the most accurate and ethical diamond grading results.

Study Diamonds at GIA
Through a unique combination of hands-on training, one-on-one coaching and multimedia, the Diamond Grading lab class explores how to grade diamonds consistently and accurately using a modern gem microscope and a loupe.

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* Latest Diamond Jewelry 101 News *

*** News Filter: "Diamond-Grading"

Breaking: GIA Redefines Lab-Grown Diamond Grading Report  Natural Diamonds
GIA’s New ‘Quality Assessment’ for Lab-Grown Diamonds Is Coming  nationaljeweler.com
Diamonds’ Universal Grading System Is Becoming Less Universal  The New York Times
GIA to Offer Complimentary Next-Day Diamond Grading Reports During the Holidays  instoremag.com
What’s the Difference Between Lab-Grown and Natural Diamonds?  Brides
GCAL By Sarine’s Discerning 8X® Ultimate Cut Grade For Diamonds  Forbes
Style Edit: De Beers doubles down on natural diamonds  South China Morning Post
All That Glitters Isn’t Graded: The New Rules of Diamond Value  observer.com
I tested Quince's diamond engagement rings that start at $900, and they're actually pretty impressive  Business Insider
GIA redefines lab-grown diamonds amid troubled market  Financial Times
VVS2 or VS1: Can You Spot the Difference Without a Loupe?  Breaking AC
Pink Diamond Price, Rarity & Value: 2025 Market Power Trends  Farmonaut
The Best Places To Buy Diamonds 2025: My Favorite Online Jewelers For Holiday Shopping  Forbes
Why Buyers Are Spending Millions on Colored Diamonds  The New York Times
The 15 Best Places to Buy Lab Grown Diamonds in 2025  Brides

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