Green Gemstones: History, Lore and Gemology | GIA Knowledge Sessions Webinar Series
1:09:59
Microfeatures of Gems: Geologic Implications | GIA Knowledge Sessions Webinar Series
54:04
The Latest Discoveries from Gems & Gemology | GIA Knowledge Sessions Webinar Series
1:05:21
Sapphires: From Ceylon to Ethiopia | GIA Knowledge Sessions Webinar Series
18:26
How I Became A Gemologist | 3 Gemologists Unbox Their Stories
14:38
A brief history of powerful gemstone amulets | V&A
50:36
The Crown Jewels: The Priceless Artefacts Owned By The Royal Family | Royal Jewels | Real Royalty
19:05
US Vice President Vance criticizes Europe for migration and democracy deficits | BR24
9:38