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What is a Gemology course?
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How can I earn an online Gem & Jewelry credential?
Established in 1931, GIA is an independent nonprofit that protects the gem and jewelry buying public through research, education and laboratory services.
- My GIA
My Laboratory & GIA Laboratory Client Portal. Now featuring...
- 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
For an optimal experience on a mobile device, download the...
- 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
Graduate Gemologist ® Program. The GIA Graduate Gemologist...
- Learn What Diamond Color Is and What it Means | GIA 4Cs of Diamond Quality
- 4Cs of Diamond Quality by GIA | Learn about Diamond Buying | What are the Diamond 4Cs
- Laboratory-Grown Diamonds (Diamonds Grown in a Lab) | GIA
- Learn How to Buy a Diamond with the GIA Diamond Buying Guide | 4Cs of Diamond Quality by GIA
- GIA Diamond Grading Reports | 4Cs of Diamond Quality by GIA
- Learn What Diamond Cut Actually Means and All About Diamond Cut Grades| 4Cs of Diamond Quality
- Diamond Origin Report Service - GIA 4Cs
- My GIA
Study whenever and wherever you want, then submit assignments and take exams online. Instructors are available by email or phone to provide support, guidance and expertise. Get hands-on experience in lab classes offered at GIA campuses worldwide.
- Gia Diamond Grading Report
- New! Gia Diamond Origin Report
- Gia Diamond Dossier®
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...
WITH A GEM AND JEWELRY EDUCATION FROM GIA. 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.
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.
Study the latest gem treatments in the market today, and how illumination techniques can facilitate the identification process. Additionally, the course covers how – and when – to use gemological laboratory services and how to use gem identification skills to protect your business from costly mistakes.
