The Story of Tanzanite. What Makes This Gem Extraordinary?
51:22
Tanzanite from Tanzania documentary of Patrick Voillot
11:57
How Rare Gems Are Hunted In Afghanistan From 300-Foot-Deep Mines | Risky Business | Insider News
22:05
Tanzanite Stone: Price, Quality, mining & Investing?
24:27
The Tanzanite Story
46:04
Inside The Gem Trade: Pigeon’s Blood Ruby | In Search Of Precious Stones | Ep 2/4 | CNA Documentary
11:48
How Miners Find, Cut, And Transport The Most Expensive Amethysts In The World | So Expensive
31:09
The Van Gogh of Music: The Story of Nick Drake
43:15