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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.
Gemological Institute of America, Inc. 5355 Armada Drive Carlsbad, California, 92008 Hours: Walk-in service is available Monday - Friday, 8:30 a.m. - 3 p.m. by appointment only. The laboratory is open for submissions via transport or walk-in. View available services and shipping information
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.
GIA Education. Elevate your career in gems and jewelry by combining passion with knowledge. Study at the Gemological Institute of America, the world’s foremost authority in gemology, and earn a diploma that opens doors throughout the industry.
GIA’s Guide to Gemstones: Gem Encyclopedia. GIA’s Gem Encyclopedia is a virtual journey through the science and lore of gemstones from across the globe. Each precious stone page features additional detailed gemological information, a buyer’s guide, photos, videos & research. Filter By Country. View Gems as.
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 ...
Há 3 dias · Gemological Institute of America® (GIA), Carlsbad, California GIA® in Carlsbad is one of the world’s great gemological research facilities and grading centers – and it’s also a stunning gem and jewelry museum. Exhibits include Riches in the Rocks, trilliant-cut gems and Symphony in Gemstones.
