Glass filled, heat treated Rubies at The Bangkok Gem show
9:29
Glass Filled Gems: Zombie Crystals [Treatments]
4:38
How to tell the difference between Unheated Ruby & Lead Glass Filled Ruby?
40:52
Burma: Gem Adventure of a Lifetime
53:22
1000 Marbles, 200 Pine Cones & Epoxy to Make Masterpiece// Wonderful Forest River Epoxy Table
1:01:30
Rubies: Connecting Sources, Treatment and Science | GIA Knowledge Sessions Webinar Series
6:16
How To Spot A Ruby - ID Gems Like A Gemologist!
22:47
GRS Gemresearch Documentary: A Journey to Mogok
1:04:54