Story Behind the Stone: Where do African Gems Come From? A positive look at the Madagascar gem trade
20:03
Vietnam Unearthed: Ruby, Spinel, Sapphire and more, explore gemstones and gem mining in Luc Yen.
48:53
Madagascar, the Corridors of Satan | Deadliest Journeys
12:23
Madagascar Unearthed: Gemstones of the Malagasy
14:54
Gems of Northern Madagascar
28:57
MOST EXPENSIVE Gemstones Ever Discovered
51:22
Tanzanite from Tanzania documentary of Patrick Voillot
36:38
GRS Gemresearch Documentary: Sapphire Mining in Madagascar (2008)
11:48