The Advanced Diamond Clarity Chart is designed to show you what each of the clarities mean under 10x magnification, what you’ll be able to see with your naked eye (without magnification), and show you how to go about finding these clarities in the “real” world when it comes to different grading labs.

The Odd Truth
What’s meant by “Real World” is not everything is black and white, cut and dry. The same goes with diamond clarities. The diamond grading scale was invented and perfected by GIA. GIA is the only lab, outside of AGS, that adheres to strict grading practices so that your diamond has real value. Another words if someone could just say your diamond was a flawless diamond without any guidelines to follow, and your neighbor could say the same thing about her diamond, than basically diamonds would lose their value. When it comes to diamonds, the more rare something is, the more valuable it is.
This is a problem in the “real world” of diamond grading. As many diamond wholesalers do not like the strict guidelines that GIA uses. They “feel” their diamond should be graded higher, thus making their diamond more valuable thus making them a better profit when they sell it. Out of this thinking new diamond grading labs were born. These grading labs are much more looser on diamond grading. They made their own guidelines and follow them, and then try and pass them off using GIA’s grading system.
Know About Different Grading Labs
This is what the advanced diamond clarity chart is for. It will show you what clarity grading level the diamond you’re looking at needs to be to match the pictures below. As a rule of thumb what GIA says your diamond it, it is. Period! No questions asked. Not by your insurance company, not by any online jewelry store, or offline. GIA is the foremost authority when it comes to diamond grading and they are not argued with. However others can be argued with because as a rule of thumb in the diamond world diamonds that are graded by any other gemological lab other than GIA or AGS can be off by at least 2-3 grades. So that diamond you’re looking at graded by, say, EGL Israel that reads SI1 clarity on the certification will most likely be, according to most experts in the jewelry industry, as well as GIA, an I1 diamond.
| 10x Magnification | Naked Eye | Clarity / Description | To find this Clarity |
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A Few Notes
AGS is second only to GIA. World known for being as strict as GIA, and year after year they help perfect the diamond and gem grading system.
They grade using numbers with 0 being flawless all the way to 10 which is considered the worst. You’ll see this reflected above in the chart.
In the chart above when we say “Other” we are referring to any and all grading labs that are not GIA, AGS, or EGL-USA. Such as:
- EGL International
- EGL Israel
- IGI
- AGA
- In house grading. You’ll find this is the case most of the time when you shop for diamonds in a jewelry store.
EGL-USA is the same thing as:
- EGL New York
- EGL Los Angeles
- EGL Vancouver
- EGL Toronto
EGL International refers to all EGL companies that are not located in the U.S or Canada. To make this very clear. EGL-USA is NOT the same thing as EGL-Int. Not even close.
The SI3 Conflict – Pay Close Attention
EGL-USA used to be part of the EGL Company as a whole. But has since separated and operates solely as their own company (EGL USA Group). Because of this there are two EGL corporations. EGL-USA, which is any EGL company located in North America (U.S. and Canada), and EGL International, which is any EGL company located outside North America such as EGL Israel, and EGL Belgium. These two companies are incredibly different from each other.
EGL International has a reputation for grading very soft, often times their grades are off by two or more grades compared to what GIA, AGS, or EGL-USA would grade. They grade so soft that they came up with a new clarity grade called SI3. SI3 was invented so that diamond wholesalers / dealers could get a better grade instead of being forced to use I1. SI3 is nothing more than a glorified I1. Often times it’s as bad as I2. In our 20 plus years of professional opinion avoid anything that says SI3. GIA, AGS, and EGL-USA do not recognize the SI3 grade. Most insurance companies won’t either.
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