Видео с ютуба Gia Diamonds

How to Choose a Diamond: Four-Minute GIA Diamond Grading Guide by GIA

4Cs of Diamond Quality: Diamond Clarity Grading by GIA

Understanding the Origin of Natural Diamonds | GIA Knowledge Sessions Webinar Series

4Cs of Diamond Quality: Diamond Carat Weight Grading by GIA

Comparing GIA And IGI Certified Diamonds

Identifying Mineral Inclusions in Diamonds | GIA Knowledge Sessions Webinar Series

Natural Blue Diamonds | GIA Knowledge Sessions Webinar Series

THE END OF LAB DIAMONDS? GIA’s Bombshell Announcement EXPLAINED

Diamond Buying Guide:GIA Diamond Grading - 4c's of Diamond, Clarity Scale, Color Grade, Cut

The Unique Story of Natural Diamond | GIA Knowledge Sessions Webinar Series

Natural Pink Diamonds | GIA Knowledge Sessions Webinar Series

10 шагов оценки бриллиантов — за кулисами в прямом эфире в GCAL!

Laboratory-Grown Diamonds: Updates and Identification | GIA Knowledge Sessions Webinar Series

The Science Behind Fancy Color Diamonds | GIA Knowledge Sessions Webinar Series

Colorless Diamonds | GIA Knowledge Sessions Webinar Series

Should you buy a Lab Grown Diamond? | 2ct Lab Grown vs Natural Diamond Comparison | Ultimate Guide

Natural Yellow & Orange Diamonds | GIA Knowledge Sessions Webinar Series

Чем отличаются бриллианты, сертифицированные GIA, от бриллиантов, сертифицированных IGI?

The History of Diamond Cutting and Polishing Technology | GIA Knowledge Sessions Webinar Series

A Glimmer of Hope: The World's Most Famous Blue Diamond | GIA Knowledge Sessions Webinar Series