Inside The Gem Trade: Pigeon’s Blood Ruby | In Search Of Precious Stones | Ep 2/4 | CNA Documentary
46:36
Hunting Down A Royal Blue Sapphire: Inside The Gem Trade | In Search Of Precious Stones | Ep 3/4
50:56
Mogok: O vale do rubi da Birmânia
47:06
Uncovering The Flawless Diamond: Inside The Gem Trade | In Search Of Precious Stones | Ep 4/4
50:49
Por que a esmeralda é mais cobiçada que o diamante?
25:38
Colômbia: o rei das esmeraldas
20:03
Vietnam Unearthed: Ruby, Spinel, Sapphire and more, explore gemstones and gem mining in Luc Yen.
43:06
Ten Exotic and Phenomenal Gemstones
46:08