Tanzanite Stone: Price, Quality, mining & Investing?
31:25
Emerald Stone: Prices, Quality Comparisons, Origins, Treatments & More!
21:30
Peridot Stone: Prices, Origines
46:41
A Stunning 71 Carat Tanzanite Stone For Sale | Posh Pawn S3 E2 | Our Stories
20:49
The Story of Tanzanite. What Makes This Gem Extraordinary?
1:02:45
Joanna Manousis - Artist Talk (Oct. 29, 2024)
17:17
Gemology Tools: What Do I Buy, When?
18:09
Easy Gem Tests Gemologists Actually Use
19:04