8 years, 18 countries on 5 continents, 5 countries in Europe, 12 states in USA, 47 provinces in VN 8 years, 18 countries on 5 continents, 5 countries in Europe, 12 states in USA, 47 provinces in VN

Jewelry Education

AGS - American Gem Society

AGS - American Gem Society
American Gem Society – AGS was founded in 1934 by Sir Robert M. Shipley, Founder of GIA - the Gemological Institute of America, and a group of leading jewelers. The AGS Laboratory offers the world's most prestigious diamond test papers. Continue reading