MOST EXPENSIVE Gemstones Ever Discovered
1:01:00
Splendid Stones - National Geographic
52:52
World's greatest treasure: crystals and gemstones | FULL DOCUMENTARY
20:14
$6000 investment - The best cut ever - Rare Harlequin Black Opal
11:48
How Miners Find, Cut, And Transport The Most Expensive Amethysts In The World | So Expensive
2:03:29
TECNOLOGÍAS PERDIDAS: Misterios de civilizaciones desaparecidas
20:03
Vietnam Unearthed: Ruby, Spinel, Sapphire and more, explore gemstones and gem mining in Luc Yen.
35:00
Top 15 Most Expensive Jewels in the World Worth $1.65 Billion
27:09