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

Natural Green Diamonds | GIA Knowledge Sessions Webinar SeriesПодробнее

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

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

Rough Diamonds: Natural Crystal Shapes & Surface Features | GIA Knowledge Sessions Webinar SeriesПодробнее

Natural Pink Diamonds | GIA Knowledge Sessions Webinar SeriesПодробнее

Identifying Mineral Inclusions in Diamonds | GIA Knowledge Sessions Webinar SeriesПодробнее

Understanding Jadeite | GIA Knowledge Sessions Webinar SeriesПодробнее

The History of Engagement Rings | GIA Knowledge Sessions Webinar SeriesПодробнее

Minerals Discovered and Named at GIA | GIA Knowledge Sessions Webinar SeriesПодробнее

Geology 101: Natural Processes that Form Colored Gemstones | GIA Knowledge Sessions Webinar SeriesПодробнее

Red Gemstones: History, Lore and Gemology | GIA Knowledge Sessions Webinar SeriesПодробнее

A Gemstone’s Journey through the GIA Laboratory | GIA Knowledge Sessions Webinar SeriesПодробнее