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Established in 1931, GIA is an independent nonprofit that protects the gem and jewelry buying public through research, education and laboratory services.
- 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...
- Contact Us
Mailing Address GIA World Headquarters The Robert Mouawad...
- LIST YOUR STORE
Search a city or postal code to find retailers who carry...
- Visit GemKids Website
Outdoor School: Rock, Fossil, and Shell Hunting. The...
- Birthstones
Birthstones are gemstones that represent each month of the...
- 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...
- Diamond Essentials
This course covers how to describe diamond jewelry...
- 4Cs of Diamond Quality by GIA | Learn about Diamond Buying | What are the Diamond 4Cs
- Learn What Diamond Color Is and What it Means | GIA 4Cs of Diamond Quality
- 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
- Laboratory-Grown Diamonds (Diamonds Grown in a Lab) | GIA
- Learn What Diamond Cut Actually Means and All About Diamond Cut Grades| 4Cs of Diamond Quality
- About GIA Diamond Grading | 4Cs of Diamond Quality by GIA
- Grading the Diamond 4Cs | GIA Diamond Grading & Reports | 4Cs of Diamond Quality by GIA
- My GIA
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.
You can manage your team members and provide access to My Laboratory, update payment preferences, view open balances and create shipping memos. Also, view and manage the status of your items being graded at a GIA laboratory, add services, print reports, download GIA report PDFs and much more.
- What Are The 4Cs of Diamond Quality?
- How Do You Buy A Diamond in-store?
- How Do You Buy A Diamond Online?
- Why Do You Need A Gia Diamond Grading Report?
- How Do You Protect Your purchase?
The GIA 4Cs of diamond quality helps you understand a diamond’s characteristics as well as its value and price. 1. Cutis perhaps the most crucial of the 4Cs. Cut does not refer to a diamond’s shape, but rather to the quality of workmanship (proportion and arrangement of facets) for round brilliant diamonds.* The quality of a diamond’s cut determine...
The first step of buying a diamond in-store is finding a reputable jeweler. Your jeweler should be armed with expert training, be open to questions, and be able to explain how to buy a diamond in clear, simple language. A jeweler’s professional training can help you evaluate how knowledgeable he or she is. Preferably, their training comes from a hi...
Online shopping allows buyers to browse vast quantities of diamonds from the convenience of home. Many websites let shoppers search according to 4Cs parameters. This way, shoppers can compare the prices of diamonds that have similar characteristics. Grading reports are crucial when shopping in this way, because without seeing the diamonds in person...
A diamond grading report from an unbiased, scientific laboratory such as GIA is more than a document containing important information; it’s proof of what you are buying. Purchasing a diamond with a GIA report ensures that you know the quality of your diamond and exactly what you are paying for. At GIA, we know diamonds. We created the 4Cs of diamon...
Once you’ve purchased the right diamond, have it appraised and insured. Appraisers and insurers rely on diamond grading reports to determine the value of gems. If your diamond doesn’t already have an inscription, consider having it laser-inscribed with its GIA report number to provide verification if it is ever lost or stolen. WHAT IS A GIA GRADUAT...
GIA diamond is a term you’ll find when engagement ring shopping – short for a diamond graded by GIA, the creator of the 4Cs and the independent, diamond authority. Learn more about GIA diamonds and why savvy shoppers rely on GIA.
Graded by GIA. 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.
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