Risultati di ricerca
20 mag 2024 · ESG. IGI is equally committed to all three facets of ESG – focusing on environmental, social and governance matters internally and externally. IGI’s supreme position in the gemological world is no coincidence. It is the result of continuous research, support and synergy with professionals and consumers alike.
GIA reports represent the highest standard of reliability, consistency and integrity. And now, GIA Report Check is available for all GIA reports, providing you with an additional level of assurance. With Report Check, you can quickly and conveniently confirm that the information on your report matches what is archived in the GIA report database.
About Diamond. Diamond forms under high temperature and pressure conditions that exist only about 100 miles beneath the earth’s surface. Diamond’s carbon atoms are bonded in essentially the same way in all directions. Another mineral, graphite, also contains only carbon, but its formation process and crystal structure are very different.
A Brilliant Legacy. From the Hope diamond to the Spirit of the Rose, the Taylor Burton and the Lesotho Promise, we are trusted by museums and top auction houses all over the world to grade and research nature’s finest treasures. We apply the same passion, precision and expertise that we use in grading these world-famous diamonds to grading ...
美国宝石学院 (Gemological Institute of America)，简称GIA，是把钻石鉴定证书推广成为国际化的创始者。它是在公元1931年由罗伯特·希普利先生（Mr. Robert Shipley）所创立，已有将近90年的历史，GIA名誉上是非营利机构，经费由珠宝业界人士捐献，在鉴定书内容品质方面，颇具公信力。
4 giorni fa · Harness the power of knowledge with the industry-leading instruments that GIA uses in its grading laboratories. Representing more than 85 years of research and the combined expertise of GIA’s laboratory, education and research divisions, these instruments will help you buy, grade and appraise gemstones and jewelry with unrivaled accuracy and ...
13 feb 2023 · GIA Research. GIA Research. GIA is proud to provide the most comprehensive research in the industry with a world-renowned field gemology team and a dedication to acquiring colored stones directly from the source. Our cutting-edge research lays a strong scientific foundation to set the standard for diamond and gemstone reports.
