Gemological Institute Of America | All About Gemstones - GIA- giá bán xe sri lanka ,Established in 1931, GIA is an independent nonprofit that protects the gem and jewelry buying public through research, education and laboratory services.Sri Lanka: From Mine to Market, Part 1 | Research & News - GIASep 30, 2014·The GIA team especially thanks the Sri Lankan authors, all the members and organizations of the Sri Lankan gem and jewelry industry, and the extremely warm, hospitable people of Sri Lanka. Also, author Andrew Lucas would like to thank videographer and coauthor Pedro Padua for his tireless hard work in the field, taking readers to these ...