Most of us know what GIA is, and why it’s the most reputable certificate / diamond report in diamonds industry, but in case you don’t, it’s the Gemological Institute of America. the GIA report consists of highest standards of reliability, consistency and integrity.

It was established by Robert M. Shipley, who sought to put standards and ethics when buying and/or selling diamonds and other precious stones.

When you browse online stores like Blue Nile, and find a great diamond like this one, you will find a GIA logo under Diamond Details section (no wonder they put it the first thing there), like this one:

GIA cert on BN

Click the image to see the real report.

With all the vendors selling diamonds whether online or walk-in shops, it became more popular to see low-quality diamonds stores selling diamonds with fake GIA certificates!

Because of this, nowadays it’s more important than ever to check the GIA certificate if it’s real, official, legit, and represents the diamond you’re thinking to purchase.

While the big online vendors that we always recommend to buy your diamonds from are 100% safe on this front, you may still see this with less-known & scammy online diamonds vendors, and in local stores as well.

Before understanding how we can make sure a GIA certificate is original, it’s a good thing to see how a typical GIA certificate/report looks like.

GIA Certificate Sample

Here is a sample of GIA check, it contains everything you need to know about the diamond, just take a look and pay attention to details, we will highlight some important information shortly: (click the image for a larger view, opens in a new tab)

GIA Sample Report

How Do I Check if a Report is Official & Real?

It’s not rocket science, there are many signs that will tell you if the report is legit, but be careful, it’s not only about having an official report by GIA, some local stores provide real GIA reports, but for different diamonds!

Yes you read that right, I’ve been reached by a reader who was about to get a diamond based on the certificate of another diamond!

So when we check the GIA report, any report, we need to notice what makes it real, and what makes it for the diamond we’re checking!

Look now again the sample report above, other than all diamond specifications on the left (4Cs, measurements, Polish, Fluorescence, etc…), take a look at these:

1- Report Number:

The GIA certificate has a report number on the middle top, and under it, it says you can verify this report on the GIA website. Head to GIA Report Check Page and enter the report number, you will get a page like this one for the above sample report.

2- QR Code:

GIA Report QRStarting 2014, ALL GIA certificates included a QR code (Quick Response Code) that at the bottom right of the certificate, scan it to get to the Diamond Report Check Page on GIA. If the report is older than 2014, it won’t be there, but it would be a good question to know why a diamond wasn’t sold for all that time!

Note that these two points (number & QR) will guarantee that the report is officially issued by GIA, but doesn’t confirm if it belongs to your diamond or not.

3- The Clarity Characteristics Section:

This is the MOST important thing you need to look at your report. If your diamond is more than one Carat, the GIA report will have this in the middle-lower section.

GIA Report Clarity Section

This Clarity section will tell you where exactly the inclusions appear on the diamond (unless it’s flawless which is a very rare grade, and impossible for someone to have one and willing to use a fake GIA to sell it).

If you’re on a website that doesn’t show a magnified image of the diamond, DON’T buy from them, don’t ever buy a diamond without seeing it, that’s why we always recommend getting from the known brands like James Allen, Blue Nile & Whiteflash, which provide all the details necessary about the diamond.

For example, if you look at this diamond on Blue Nile, and then check its GIA certificate clartiy section:

Clarity section for BN Diamond

You will be able to match most of inclusions you see on the diamond, this is more easily doable on James Allen with their insane 40x magnified 360 HD videos (even with 20x since their imaging technology is superb), but unfortunately you have to ask for every certificate via chat or call (which is very worth it if you’re going with that diamond).

If you’re in a local store, ask to see the diamond under magnification, every store will have a magnifier (loupe) like this one, look at the diamond on the exact locations pointed in the clarity section and match inclusions between report and the diamond in your hand.

Diamond Loupe 10x

Inclusions on the report are 100% accurate, and if you saw an inclusion that’s not on the exact location marked on the report, it’s most probably a fake one, and you better get out of that store.

If you’re more into diamonds and can tell what type of inclusion is it, you can also match the location with the type as well, such low-quality stores will try to match diamonds with the same inclusion spots, but it’s less likely to match inclusion types as well!

4- Other Considerations:

You may want to check & match ALL characteristics of the diamond on the certificate with the ones provided, it’s less likely a seller will have unmatched characteristics, but you never know! 

If you’re good in numbers and giving approximations, try to see if the dimensions provided for the diamond in the report make sense and match what you’ve in your hand.

Look at the Hologram, security code, QR, all information on the GIA report, something there will tell you about that.

The GIA has added a new detail to the diamond report in which provides pieces of information about the diamond origin, accurate diamond grading report, its rough state before being polished, and much more. To learn more you can visit the official GIA website.

In addition to all we have explained previously, let me give you a piece of advice in which will help you even more in your search for the perfect diamond:

Get Your Diamond From A Reputable Store, either online or a local store, just make sure you’re not putting x thousands of dollars on a diamond that you suspect. why don’t you spare the time of going to a store while you can visit the most trusted online stores for diamonds like James Allen, Blue Nile and Whiteflash.

to know more about the diamond GIA certificate and to make sure that you understand everything related to the GIA check please check How to Select a Diamond Certificate?

Find the One James Allen

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