GSI is an independent gemological organization committed to combining state-of-the-art technology with proven industry expertise and ethical integrity.
GSI Report-GSI Contact-About GSI-GSI Diamond Grading Reports
GSI has created a state-of-the-art diamond certification grading lab that takes advantage of the latest breakthroughs in diamond grading.
法人番号: 5180002063584; 法人名: 有限会社ジェム・サイエンス・インターナショナル; 法人名ふりがな: じぇむさいえんすいんたーなしょなる; 法人名英語 ...
Gemological Science International (GSI) is one of the three largest US gemological laboratories with 8 offices in the United States, India, Israel and ...
Information and educational services for everyone interested in gemstones. For gemologists, hobbyists, jewelers, lapidaries and everyone in between.
2021/12/7 -所在地は愛知県長久手市武蔵塚101番地1、法人番号は5180002063584です。 · 小業界 · 事業内容 · 都道府県. 愛知県.
IGI is the world's largest independent lab for testing & grading diamonds, gemstones, & jewelry, with 29 labs & 18 schools in 10 countries.
Course Schedules-Jewelry Report-School Of Gemology-Contact IGI
GCAL - Gem Certification and Assurance Laboratory; GSI - Gemological Science International. Browse Certified Diamonds. GIA – Gemological Institute of America.
2015/10/5 -有限会社ジェム・サイエンス・インターナショナル（ジェムサイエンスインターナショナル）は、愛知県長久手市武蔵塚101番地1に所在する法人 ...
Gemological Science International (GSI) ... Serving large retail chains in the US, the GSI is another laboratory with looser and more inconsistent standards than ...