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Learn more. Established in 1931, GIA is an independent nonprofit that protects the gem and jewelry buying public through research, education and laboratory services.
Report Check. 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.
Overview. 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.
The GIA Diamond Grading Report includes an assessment of a diamond’s 4Cs – color, clarity, cut, and carat weight – along with a plotted diagram of its clarity characteristics and a graphic representation of the diamond’s proportions.
The Gemological Institute of America ( GIA) is a nonprofit institute based in Carlsbad, California. It is dedicated to research and education in the field of gemology and the jewelry arts. [1] . Founded in 1931, GIA's mission is to protect buyers and sellers of gemstones by setting and maintaining the standards used to evaluate gemstone quality.
The most convenient way to obtain a GIA Diamond Grading Report, Diamond Origin Report, Diamond Dossier ® or Diamond Focus ™ Report is through a local fine jewelry retailer. Retail jewelers are uniquely qualified to obtain a GIA report and to explain its contents.
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.
In every corner of the world, virtually every diamond is described using the language GIA developed. Other reports from other entities have since made their way into the marketplace, but GIA is recognized as the original and unrivaled source for accuracy and integrity in diamond grading.
Gain the knowledge and practical skills to translate your love for gems and jewelry into a rewarding career when you earn a gemology or jewelry design credential from GIA.
RESEARCH. The world leader in gemological research, GIA’s breakthrough discoveries deepen our understanding of gemstones and the world. LABORATORY. Through independent, unbiased gem grading and analysis, GIA strives to protect the gem and jewelry buying public by setting global quality standards. INSTRUMENTS.
