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SI3 CLARITY DIAMONDS

WHAT ARE SI3 CLARITY DIAMONDS?



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SI3 Clarity Diamonds

There is an interesting Clarity Grade on the market that few customers know about, and often, those that do, find out the hard way.

I’m talking about SI3 Clarity Diamonds.

SI3???

The SI3 Clarity Grade is highly unique, questionable and only one Certification Company in the entire world uses it…EGL.

That reason alone could definitely make an SI3 purchase, an SI3 regret!



Let’s dive in and see what an SI3 really is…

SI3 Clarity

SI3 is a Clarity Grade devised by EGL (European Gemological Laboratory) and it’s supposed to bridge the gap between SI2 Clarity Diamonds and I1 Clarity Diamonds.

Take a look below to see where an SI3 Clarity is supposed to fall…

SI3 Clarity Diamonds

The problem is… There is NO SI3 Clarity! GIA Devised the Clarity Grading Chart that everyone uses to grade their Diamonds with. The GIA Clarity Chart is below…

GIA Diamond Clarity Chart

You see, there is no SI3 anywhere to be found!

The main reason for EGL to add in an SI3 Clarity Grade does make sense though. There are some borderline Diamonds with borderline Clarity. Sometimes a Diamond sits right on the line between an SI2 and an I1.



SI3 is considered a Diamond that looks better than a normal I1 Clarity stone, but yet not good enough to truly qualify as an SI2.

The truth is, any Clarity Grade could have this opinionated issue. There are always Diamonds sitting on the fence and a tough decision has to be made about the actual Clarity and Quality of that particular Diamond.

EGL decided to add in this borderline Clarity rating to ease the transition of these two grades. It smooths the line between Visible Inclusions and Invisible Inclusions. Let’s take a look at the Invisible ones first…

SI2 Clarity Diamonds

In an SI2 Clarity Diamond, all of the flaws should be invisible to the naked eye when viewed from a top down position (peering down into the Table of the Diamond).

But, you will see flaws if you tip that stone on it’s side and peer through the Pavilion (base of the Diamond).

SI2 Clarity Diamond

These Inclusions are visible now, under 10 magnification (10x Jewelers Loupe or Microscope), but not when you’re just looking at the Diamond with you eyes.

Now let’s look at the Visible Inclusions…



I1 Clarity Diamonds

In an I1 Clarity Diamond, you WILL see flaws in the stone just by looking directly down into the stone. No hiding those Inclusions!

You’ll see Black Spots, lines, Cloudy Areas, Pinpoints, Cracks, Fractures, Breaks and more. Take a look at an I1 Clarity stone below…

I1 Clarity Diamonds

So the general rule of thumb is this: If you can see flaws looking down into the Diamond, it’s an I1 Clarity Diamond or worse.

If you can only see the flaws from a side view, then it’s an SI2 Clarity Diamond.

This is normally the case. But there are always some exceptions to the rule. I know some people who have extra-ordinary eyesight and they can see flaws in an SI1 Clarity Diamond.

SI3 Changes things

This is EGL’s exact verbiage and definition of an SI3 Clarity Diamond taken directly from their website:

Diamonds graded as SI-3 (‘slightly included”) contain clarity characteristics that are very easy to see under 10X magnification. The SI-3 category lies between the SI-2 and the I-1 grade.

SI-3 was introduced to the diamond trade in 1992 to better serve the changing needs of the marketplace.

While not all labs have adopted SI-3, EGL USA began using it on its diamond grading reports in 1997.

They are saying from this very brief text, that in an SI3 Clarity Diamond all the flaws are only visible under 10x magnification. They will be very easy to see, but you shouldn’t see any with the naked eye.

That’s a strong statement!

But is it true?

In my dealings with SI3 Diamonds… NO! It’s not entirely true.

All the SI3 Clarity stones that I’ve ever seen do have eye visible flaws and imperfections in them from the top down view.

So while EGL is saying that SI3 takes up a portion of the SI2 Clarity Range and the flaws are only microscopic, I have yet to see this.

I feel that SI3 takes up more of the I1 Clarity Grade instead!

An SI3 Diamond is really an I1 Diamond.

Every Jeweler that I’ve ever talked to feels the same way. Ask around… Just ask. Call a Jewelry Store up today and see what they say about SI3’s. You’ll get an ear full.

I say call it what it is, an I1 Diamond!

EGL uses the GIA’s Grading system to rate their Diamonds with. They just add in the SI3 to act as a buffer for lower quality Diamonds. I believe that extra Clarity Grade serves a much better purpose for Jewelers though…

It helps them Sell More Diamonds!

GIA Standards

Everyone shopping for Diamonds gets a rough education in the 4C’s: Cut, Color, Clarity and Carat Weight. Consumers hear from salespeople all the time that you should buy a Diamond of at least SI Clarity or higher.

This “SI Clarity” sticks in people’s minds. They hear SI and think “This is a good Quality of Diamond“. Frankly, I find it a bit misleading.

Customers don’t realize that the 3 on the end of SI changes everything.

You can’t shop and compare prices of SI3 Clarity Diamonds unless you ONLY compare them to other SI3 EGL Certified Diamonds. EGL is the only one that gives this rating, so unless the Jewelry Store you’re shopping at sells EGL Certified Diamonds, you won’t be able to effectively compare Diamonds, Quality or Prices.

If you want to shop and compare an SI3 Diamond, compare it to an I1 instead. That’s what everyone else would call them…

So while SI sounds good, that 3 just confuses people and makes them think they’re getting a better Clarity stone. And here’s the real kicker: They’re paying more!

The Price goes up!

That’s right. By calling it an “SI3“, it suddenly makes the Diamond seem more valuable than an I1 Clarity Diamond. So what happens is you pay more for that stone than you should. All because it seemed better and sounded better.

How sad!

If you want a Diamond that has eye visible Inclusions in it, buy an I1 Clarity Diamond instead (and save the money).

I1 Clarity is not all that bad… As long as you know you’re buying an I1 stone and have no problems with the Inclusions, all is good. There are some great looking I1 Clarity Diamonds out there, you just have to search for them (As I did here at James Allen with Excellent Cut I1 Clarity Diamonds).

Get GIA’s Opinion!

What we’ve always done (the Jewelry Stores that I’ve worked at), is to send any “SI3” Diamonds that we get to GIA to obtain an actual Diamond Report for the stone. GIA will tell you what the Diamond Clarity really is.

In every instant so far, I’ve seen them all come back as I1 Clarity.

Now I’m sure there are some exceptions to this rule. I’m sure you can find SI3 Diamonds that do have “invisible” Inclusions in them (even SI2’s don’t claim that), but as of yet, I haven’t seen any.

I’d be very surprised to see an EGL SI3 Clarity Diamond come back as something higher in Clarity like a GIA SI2.

That would be crazy…

And I’ll tell you why…

If the stone was BETTER than an SI3, EGL would just call it an SI2 and make the Diamond more valuable.

See my logic?

They know it’s not a true SI2 so they call it an SI3.

SI3 sounds better. SI3 sells better. SI3 gets more money, and there is NO stigma like there is calling the Diamond an I Clarity (the lowest Clarity on the market).

It’s a win-win situation for Jewelers that sell EGL Diamonds. They sell like hotcakes!

Not all Jewelers sell EGL stones. Some Jewelers just don’t want that questionable Clarity brought up. It’s an image thing.

But some Jewelers I’m sure, will take full advantage of this better sounding Clarity. You can’t blame them either… The Diamonds are already on the market. They are Certified. And if it helps sell the stone, why not?

My Advice

If you want an SI3 stone, buy one. Especially now since you know what SI3’s are…

But if it were me, I would stick to GIA standards and buy at least SI2 or higher (I recommend SI1, VS1 or VS2).

GIA says there is no SI3, and that’s good enough for me!

SI3 Regret

Is this purchase a regret? Maybe, Maybe not. You probably will pay more. You might have got mislead. You may not be getting the SI Quality you think you’re buying… And you will have a much tougher time trading in or upgrading your Diamond. Jewelers will only give you the equivalent to what the stone really is: An I1 Clarity!

That’s the facts. You just have to deal with it!

When GIA includes the SI3 Category into it’s strict grading system, I’ll take them seriously.

Until then, don’t listen to the fluff. SI3’s are I Clarity Diamonds, just look at the flaws. You’ll see!




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