4cs.gia.edu

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• property: og:description content: The 4Cs of diamond quality. For nearly 100 years, we’ve provided consistent and unbiased expertise in the diamond industry. As the home of the 4Cs, we are dedicated to educating the industry and most importantly, protecting consumers. Learn how the 4Cs can help you make your next purchase.Learn More The 4Cs of diamond quality. For […]
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• property: og:site_name content: GIA 4Cs
• property: article:modified_time content: 2025-08-06T18:33:11+00:00
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• https://4cs.gia.edu/en-us/
• http://4cs.gia.edu/#
• https://4cs.gia.edu/en-us/4cs-of-diamond-quality/
• https://4cs.gia.edu/en-us/diamond-color/
• https://4cs.gia.edu/en-us/diamond-clarity/
• https://4cs.gia.edu/en-us/diamond-cut/
• https://4cs.gia.edu/en-us/diamond-carat-weight/
• How to Buy A Diamond
• Diamond Treatments
• Diamond Origin
• Simulants, Moissanite and Lab-Grown Diamonds
• Grading the 4Cs
• https://4cs.gia.edu/en-us/how-gia-grades-diamonds/
• Types of GIA Reports
• About GIA
• https://4cs.gia.edu/en-us/blog/
• https://4cs.gia.edu/en-us/blog/vvs-diamond-versus-vs-diamond/
• https://4cs.gia.edu/en-us/blog/diamond-fluorescence-good-bad/
• https://4cs.gia.edu/en-us/blog/tips-for-buying-an-engagement-ring/
• Read More
• https://4cs.gia.edu/en-us/blog/vvs-diamond-versus-vs-diamond/#more-13308
• Read More
• Read More
• Read More
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• https://onelink.to/p9cacu
• Retailer Lookup
• GIA Report Check
• GIA Gem Encyclopedia
• GIA Laboratory Services
• GIA Education
• Are you a retailer?
• GIA.edu
• Terms of Use
• Copyrights and Trademarks
• Privacy Notice
• Contact Us
• English
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• 日本語

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Domain Name: GIA.EDU
Registrant:
Gemological Institute of America
5345 Armada Drive
Carlsbad, CA 92008
USA
Administrative Contact:
admin Admin
Gemological Institute of America
5345 Armada Drive
Carlsbad, CA 92008
USA
+1.7606034313
[email protected]
Technical Contact:
admin 
Gemological Institute of America
5345 Armada Drive
Carlsbad, CA 92008
USA
+1.7606034313
[email protected]
Name Servers:
A1-7.AKAM.NET
A3-65.AKAM.NET
A11-67.AKAM.NET
A10-66.AKAM.NET
A24-64.AKAM.NET
A6-66.AKAM.NET
Domain record activated:    30-Mar-1996
Domain record last updated: 28-May-2025
Domain expires:             31-Jul-2027
        

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