InColor Magazine Precious Braswell 12/31/20 InColor Magazine Precious Braswell 12/31/20 Evolution of Gem-Testing Labs Read More World of Gems Conference Precious Braswell 12/1/08 World of Gems Conference Precious Braswell 12/1/08 The Burma Ruby Ban and Alternate Ruby Sources Read More Precious Braswell 1/1/95 Precious Braswell 1/1/95 A Contribution to Understanding the Infrared Spectra of Rubies from Mong Hsu, Myanmar Read More
InColor Magazine Precious Braswell 12/31/20 InColor Magazine Precious Braswell 12/31/20 Evolution of Gem-Testing Labs Read More
World of Gems Conference Precious Braswell 12/1/08 World of Gems Conference Precious Braswell 12/1/08 The Burma Ruby Ban and Alternate Ruby Sources Read More
Precious Braswell 1/1/95 Precious Braswell 1/1/95 A Contribution to Understanding the Infrared Spectra of Rubies from Mong Hsu, Myanmar Read More