2:31
Chanthaburi Trip with AIGS Thailand 2017.
AIGS Thailand
1:00
AIGS (Gemological institute) Field Trip to World Sapphire company at Chantaburi in Thailand
1:07
Myanmar field trip 13-15 Mar 09
2:40
Cambodia field trip 15-17 May 09
8:32
Sri Lankan Gemstone Expedition by AIGS
53:33
Mogok, Myanmar Gem (Ruby, Sapphire) Mining Research Expedition. AIGS.
