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Fake Or Real


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Kidding aside - there is no way anyone can tell you anything from a photograph of that size and quality (or even a much bigger one; you'd need a photomicrograph of some inclusion, and then perhaps something could be said). On the other hand, your local friendly jeweller most likely has a diamond tester, and usually would be more than happy to check the stone for free.

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Don't worry. The problem is that really with a photo there is little that can be done. What you think is "a small diamond inside" is probably the girdle of the stone being reflected (red oval):




This would happen pretty much in any stone, be it natural or synthetic, diamond or not. On the other hand, there is a large(ish) dark "lump" (red arrow) right at the bottom that is possibly an inclusion; this would rule out most synthetic simulants, but it still doesn't mean the stone is a diamond.


Honestly - just go to the nearest jeweller and ask them to test it for you. It takes 30 seconds at most, and most jewellers wouldn't charge you for testing one stone.

Edited by davidelevi
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  • 2 weeks later...
  • 1 month later...

The so-called fog, "hardness" (???), glass scratch and even the "print visibility" test are frankly useless. They work with way too many types of materials to be able to say anything. Pretty much any photos are useless in this respect too.


Same suggestion as for the OP above: take it to a jeweller or a gemmologist. It will take them a few seconds to tell you if it is a diamond (and perhaps even what it is, if it is NOT a diamond).


MY personal bet is that it isn't a diamond, but that's just based on the observation that a 50+ carat diamond is unlikely to be "found" at random; it is big enough that it would be a notable find when rough and it would be very unlikely to find its way to someone who doesn't know what it is (by which I am not implying anything negative about you; I'm only saying that that type of stone is guarded night and day, and when found, sold, lost or stolen it makes for big, television-worthy news).

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Holy S*** you hit the big one. Ahhh. Just kidding. Does not look like a diamond to me. Davide to me it looks like a 20-25CT where did you get 50ct. (I think someone needs to get their eyes checked. LOL <_<

10.5 x 5 = 50+ my bad. (the SG) is way off. LOL

I try never to make assumptions based on hand-pictures, and that's the only "reference" for the size. In David F's hands (or of somebody else that wears a size 15 wedding ring) that could well be a 50 carater... so I went with the weight provided. :)

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Your right: I referenced my fingers. Not the Posters ones. I have tiny hands compared to some people. BTW: Now that I think about it, my dad had huge fingers. Big Sausage/working hands.

He was tough as nails, and use to box professionally in Ukraine. Back in 2008 when he was in the hospital suffering from cancer, and could not speak, let alone move. One of his last days, I remember him holding my hand, and squeezing so tightly. His hands were always very strong!


I remember my dad telling me a story when I was young that he used to be able to drive a thick nail through 2x4 with his bare hand. “If your hand was weak/soft -the nail would go through you; if not then the wood†in broken Englishâ€

BTW I recall D.F. huge hands your right - It goes well with his bushy eyebrows. LOL

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  • 9 months later...

What would you like to know?  Those aren't diamonds.  They're synthetic, but they're not diamonds.  Most don't even claim they are. It's easy enough with tools as simple as a 10x loupe or a thermal tester but some of the fakes look pretty darned good at first glance. Frankly, the easiest way is to ask a pro.  They should be able to do it in less than 10 seconds and usually don't charge for the service.  It's usually easy to do but practice helps. 


What are some of the clues?


Unreasonable size, color and clarity for the context.  (big, expensive diamonds are rarely set in gold plated or silver mountings for example.)

Wear patterns on the facet junctions and girdle (diamonds are pretty durable.  Most simulants far less so).

Unusual colors, luster, and/or transparency (D+ color is rare in diamond.  It's quite common in simulants).

Girdle treatment.

Weight to size ratio (CZ, in particular, is about 50% heavier than diamond).

Thermal conductivity.

Double refraction (Moissanite is DR.  Diamonds and most of the simulants are not).

Inclusions, or lack thereof.


Evasive language in the advertisement.

Paperwork (Papers don't mean it's a diamond but most diamonds over a carat or so are sold with lab papers these days so lack of papers or papers from a ridiculous source is a bad sign.  Obviously papers that SAY it's not a diamond answers the question)

Edited by denverappraiser
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Virtually every simulant has a specific gravity much greater than diamond which would lead to what looks to be the case in the photo- big weight small size.  Various natural stones like quartz and white sapphire have been faceted for hundreds of years too.

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  • 3 weeks later...

No, but from my understanding it is quite difficult to tell something about a stone just from a normal picture... I would go to a local store for that.


Aah - I understand; you were referring to the first question. I was puzzled (and a bit snarky in answering you) because I thought you were referring to the latest one:


I need to know in detail the differences and properties of the synthetic stones marketed under the names Astralite, Moissanite, Diamond Nexus, and Sona NSCD diamonds. Please. 



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