The Tanzanite Story
25:03
How to Find and Identify Rubies and Garnets among Pebbles
51:22
Tanzanite from Tanzania documentary of Patrick Voillot
48:58
The Gemstone Journey
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GRS Gemresearch Documentary: The Mozambique Ruby Collection - A Lifetime Experience
20:49
The Story of Tanzanite. What Makes This Gem Extraordinary?
24:41
The INSANE Prices of 2025's Most Expensive Gemstones
46:48
Three Precious Gems: Rubies, Emeralds, Sapphires
20:03