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What is a GIA diamond?

by Willyou.net * May 24, 2021
GIA Diamond

GIA diamond is a term you will come across when shopping for engagement rings – short for a diamond graded by GIA, the maker of the 4Cs, and the independent diamond authority. Learn about GIA diamonds and why savvy shoppers trust GIA.  

We answer the following questions in this blog:

What is a GIA diamond? 
Is every diamond a GIA diamond certified? 
What does it mean for a diamond to be classified as “GIA Certified Diamond”?
How does GIA ensure objectivity in diamond sorting?
Do I need to have a diamond assessed?
How do you get a diamond certified by the GIA?
Are “GIA Certified” diamonds more expensive?
Where can I find a GIA diamond? 

What is a GIA diamond? 

As mentioned above, a GIA diamond is a shorthand that diamond sellers use to describe diamonds graded by GIA. GIA is an independent non-profit organization that conducts gemstone research, trains gemstone professionals, and sets the standards for determining diamonds’ quality. One of the main functions of GIA is the sorting of diamonds. You may have heard about the diamond grade 4Cs: color, clarity, cut, and carat weight. GIA has developed this standard, along with the scientific procedures for evaluating each “C” and the classification terminology used to describe them.   

GIA doesn’t mine diamonds, nor does it buy, sell, or trade them. It does not value diamonds and is not otherwise involved in the pricing or valuation of diamonds. GIA operates independently of these commercial interests and ensures that diamond quality assessments are entirely objective and unbiased.  

If you want to know the quality of the diamond you are considering, and because quality and price go hand in hand, you should look for GIA-graded diamonds, the corresponding GIA reports assessing diamonds.

Is every diamond a GIA diamond? 

No, GIA does not grade all diamonds by the GIA. However, it may seem like it, given the sheer amount of GIA-graded diamonds on the market. This book is a testament to the trust jewelers and their customers’ place in GIA’s accurate and independent review services.  

To ensure the GIA has assessed your diamond, you can request the GIA assessment report. In addition to a full assessment of the diamond’s 4Cs, the GIA report includes a unique number, which is sometimes also engraved on the diamond’s girdle. You can use the report number to access GIA’s online global report database, GIA Report Check, check if the diamond has a GIA grading, and view all grading details.  

It is most likely that a round brilliant cut diamond will be graded as good or better in its cut grade when presented with a GIA report. Another 0.50-carat diamond melee cradles this 1 carat ( ct ) diamond center stone. 

What does it mean for a diamond to be a “GIA Certified Diamond”?

“GIA certified diamond” is a misnomer. GIA does not certify diamonds – it assesses them. The terms “GIA Certified” and “GIA Certificate” are commonly used in the jewelry industry to refer to diamonds that have undergone GIA’s rigorous assessment process and the reports associated with them.  

GIA itself does not use the word “certificate” to describe the document it issues. The GIA examines the diamond, describes its characteristics and assesses it according to the 4Cs. It does not certify the diamond or its value. On the contrary, like other science labs, GIA issues a report on the results of the evaluation of a particular diamond and believes that “report” is the correct term to describe the classification results.  

A GIA diamond grading report is essential when buying a diamond. GIA offers reports in several formats, including digital versions, each containing the trusted and highly accurate classification information that diamond shoppers can rely on. 

How does GIA ensure objectivity in diamond sorting?

GIA has robust procedures to ensure the anonymity of a diamond and the objectivity of the grading process. Upon arrival at the lab, the gemologists keep the diamond in an anonymous transparent storage box without any reference to its owner. Throughout the process, it is tracked using a barcode label. All of these precautions ensure that a GIA assessment report objectively reflects the characteristics of a diamond.  

GIA diamond graders accurately assess the color, clarity, cut, and carat weight of the diamond. More experienced personnel gemologists can review some or all of the review information and provide independent opinions. Grades are only given once all graders have reached a consensus.

Do I need to have a diamond assessed?

A diamond engagement ring is one of the most important purchases you make. It can also be one of the most expensive. Therefore, you want to be sure that you are getting a reasonable price for the diamond you consider.  

A GIA diamond grading report gives you all the essential information you need to know about a diamond’s 4Cs, as well as its fluorescence, any treatments, and more. With a GIA diamond grading report, you can be sure that your diamond is natural. That’s because GIA has researched and tested the diamond using the most advanced tools and procedures available, based on the Institute’s ongoing scientific research.  

Since a GIA diamond grading report is an unbiased assessment of a stone’s quality characteristics, you can compare one GIA-graded diamond to another. This allows you to compare the quality of loose diamonds and decide which one is the best value and suitable for you. 

Ensuring the diamond you are viewing comes with a GIA diamond grading report is like getting an independent inspection before buying a car or home. It’s a smart step in your buying process – and many insurance companies require a GIA assessment report as the basis for ensuring your diamond. 

GIA grades all shapes of diamonds, and the square princess shape is one of the most popular diamonds for engagement rings. An additional 0.96-carat diamond melee surrounds this H color, VS2 clarity, 1.10 ct princess cut diamond. 

How do you get a diamond “GIA certified”?

GIA does not certify diamonds, it grades them, and anyone can submit a diamond to GIA for assessment. You can drop off a stone at one of GIA’s nine labs, located in gem and jewelry capitals worldwide, or you can ship it to GIA. Given the complexity of packaging, shipping, and insuring diamonds, and because GIA only assesses unmounted gemstones, your best option is to partner with your local jeweler to supply the stone on your behalf.  

Many diamonds in stores and online already have a GIA grading report, which you can request before purchasing. Once you complete your purchase, you’ll receive your diamond report.

Are “GIA Certified” diamonds more expensive?

Again, “GIA Certified” really is a misnomer for GIA diamonds. There is a false idea that GIA diamonds cost more, often based on comparing diamonds based on the price tag. The price of a diamond, car or other valuable item is linked to quality. If you’re not sure what quality you’re getting, how do you know if you’re overpaying or getting a good deal? Therefore, it is essential to compare prices for diamonds with the same 4C quality characteristics and whose qualities have been accurately and objectively assessed by the same independent laboratory as GIA.   

Having a diamond assessed by GIA is not expensive. GIA charges only $ 48 for a grading report for a 0.70 ct to 0.99 ct diamond, and only $ 80 for a 1.00 ct to 1.49 ct diamond (Most jewelers include the grading fee in the price of the diamond.) Since couples spent an average of $ 6,351 on an engagement ring in 2017, a GIA diamond grading report’s cost is a small price for peace of mind.      

Where can I find a GIA diamond? 

Most quality jewelers offer diamonds with GIA grading reports. The GIA Retailer Lookup can help you find retailers near you selling GIA diamonds or having GIA-trained staff. Popular e-commerce websites also sell GIA diamonds.  

Ready to shop for a diamond engagement ring?

GIA Diamond