An Overview of Emerald Mining in Brazil by GIA GIA (Gemological Institute of America) 1:43 10 years ago 5 340 Скачать Далее
Laws and Ethics of Emerald Mining in Brazil by GIA GIA (Gemological Institute of America) 1:07 10 years ago 2 098 Скачать Далее
Mining for Emeralds in Brazil by GIA GIA (Gemological Institute of America) 2:32 10 years ago 105 844 Скачать Далее
An Overview of Emerald Sources in Brazil GIA (Gemological Institute of America) 1:43 5 years ago 1 010 Скачать Далее
Emeralds of Goias, Brazil by GIA GIA (Gemological Institute of America) 2:02 10 years ago 23 558 Скачать Далее
Brazilian Mines: Nova Era and Itabira by GIA GIA (Gemological Institute of America) 2:47 10 years ago 2 429 Скачать Далее
Emeralds of Bahia, Brazil by GIA GIA (Gemological Institute of America) 2:55 10 years ago 107 064 Скачать Далее
Brazilian Emerald Miners: The Garimpeiro by GIA GIA (Gemological Institute of America) 1:37 10 years ago 5 020 Скачать Далее
Brazilian Miners: The Garimpeiro GIA (Gemological Institute of America) 1:37 5 years ago 865 Скачать Далее
Mining emeralds Bahia brazil 101 JP International Rough Mining & Colored Gemstones 4:33 3 years ago 1 619 Скачать Далее
The Glory of a Faceted Emerald by GIA GIA (Gemological Institute of America) 0:14 10 years ago 19 667 Скачать Далее
VALE VERDE, Emeralds from Minas Gerais, Brazil Field Gemology by Vincent Pardieu 9:18 4 years ago 65 483 Скачать Далее
Mining for Tourmaline in Brazil GIA (Gemological Institute of America) 6:54 5 years ago 266 344 Скачать Далее
Seventy-Five Carat Pair of the Cat's-Eye Emerald by GIA GIA (Gemological Institute of America) 2:37 10 years ago 4 917 Скачать Далее
Jaipur's Emerald Industry GIA (Gemological Institute of America) 2:07 4 years ago 98 984 Скачать Далее
Examples of high quality and low quality emerald gemstones JR Colombian Emeralds 3:51 6 years ago 633 149 Скачать Далее
Belmont Mine History Part 1 GIA (Gemological Institute of America) 13:13 4 years ago 3 266 Скачать Далее
