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GIA is a nonprofit organization that provides gemological research, education and laboratory services. Learn about gemstones, jewelry, diamond origin, field gemology and more.
- My GIA
You can manage your team members and provide access to My...
- Report Check
Report Check - Gemological Institute Of America | All About...
- Submit a Gem
The GIA Memo Creator makes it easier than ever to submit...
- LIST YOUR STORE
Search a city or postal code to find retailers who carry...
- Birthstones
Birthstones are a fun, popular and colorful introduction to...
- GIA Facetware
GIA Facetware® is a free online service that allows you to...
- Programs & Courses
One of the most sought-after gemology credentials, the GIA...
- GIA Locations
GIA Ramat Gan is open with limited capacity . We are...
- Diamond Essentials
This course covers how to describe diamond jewelry...
- Graduate Gemologist
The GIA Graduate Gemologist diploma program delivers a...
- My GIA
GIA Report Check lets you confirm the accuracy and authenticity of any GIA diamond grading report. You can access the report data, PDF, image, treatment description, and report access card (where applicable) for reports dated on or after January 1, 2000.
GIA is the world’s foremost authority on diamonds, colored stones, and pearls. Learn about its history, education, research, and quality standards in gems and jewelry.
- Gia Diamond Grading Report
- New! Gia Diamond Origin Report
- Gia Diamond Dossier®
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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. For standard round brilliant cut diamonds falling in the D-to-Z color range, the report also includes a GIA Cut grade...
The new GIA Diamond Origin Report contains all the unbiased, accurate data of a Diamond Grading Report, plus GIA’s scientific determination of the diamond’s country of origin and a microscopic laser inscription of the report number on the diamond’s girdle. Image-rich, interactive materials accompany the report, telling the story of the diamond’s ho...
The GIA Diamond Dossier offers the same grading information as the GIA Diamond Grading Report but without the plotted diagram. As an added security feature, the Dossier service includes a microscopic laser inscription of the report number on the diamond’s girdle. The GIA laboratory issues the Diamond Dossier for loose, natural diamonds between 0.15...
Learn about the different types of GIA reports for loose, natural diamonds, including the new Diamond Origin Report and the Diamond Dossier. Find out how to read a GIA report and what a laser inscription is.
GIA is the world's foremost authority in gemology, offering unbiased and accurate assessment of diamonds, colored stones, pearls and unknown materials. Learn how to submit your gemstone, find a report, and access resources and tools on GIA.edu.
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. 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.
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