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is that certificate false .......,
  
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deutsh




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PostPosted: Jun 08, 2014 08:29    Post subject: is that certificate false .......,  

Hi, maybe I am mistaken when I create this topic, but I am sure I'll find an answer.
I got this emerald with a certificate from IGL, but I know what the genuine IGL certificate looks like, and it's not similar to this certificate. Does someone recognize it? I think it's fake or ...... I don't know.



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PostPosted: Jun 08, 2014 08:35    Post subject: Re: is that certificate false .......,  

This is a genuine IGL certificate.


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Michael Shaw
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PostPosted: Jun 08, 2014 09:43    Post subject: Re: is that certificate false .......,  

Why don't you address your inquiry to IGL? I'm sure they can tell you whether your certificate is fake or authentic.

Michael
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deutsh




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PostPosted: Jun 08, 2014 10:11    Post subject: Re: is that certificate false .......,  

crosstimber wrote:
Why don't you address your inquiry to IGL? I'm sure they can tell you whether your certificate is fake or authentic.

Michael

I will do it, it's 99% not IGL but I publish it because maybe someone know what exactly it is.

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lluis




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PostPosted: Jun 08, 2014 11:47    Post subject: Re: is that certificate false .......,  

Hi, Deutsh

It is not a fake certificate. It is just from another lab.

The one with emerald is from Bangkok. If you want to take a look...
https://www.facebook.com/pages/Inter-Gem-Laboratory-Co-Ltd/365147226878355

The other is International Gemological Laboratories, in many places, but *not* Bangkok
https://www.igl-labs.com/html/igl_service_map.html
(links normalized by FMF)

Same shorting...but not same name.
I would rely on IGL (the second one), but I should say that the emerald looks to me as possibly genuine, low quality.

Hope it helps.

With best wishes

Lluís
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deutsh




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PostPosted: Jun 08, 2014 18:18    Post subject: Re: is that certificate false .......,  

thanks alot
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Gold Rock Doc




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PostPosted: Jun 08, 2014 23:42    Post subject: Re: is that certificate false .......,  

Natural emeralds are easy to distinguish from man-made. The real ones are full of fluid inclusion which often are large enough to see without a lens, but certainly are visible with a 10 X.
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deutsh




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PostPosted: Jun 09, 2014 00:03    Post subject: Re: is that certificate false .......,  

Gold Rock Doc wrote:
Natural emeralds are easy to distinguish from man-made. The real ones are full of fluid inclusion which often are large enough to see without a lens, but certainly are visible with a 10 X.

thanks so much

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lluis




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PostPosted: Jun 09, 2014 03:13    Post subject: Re: is that certificate false .......,  

Hi, Gold Roc Doc

Well, not that easy unless you have a book on inclusions depending of sources and you know how Chattan and Gilson ones look like.... (and those evolve with time...each time closer to original ones, so....)

I remember when a very good jeweller in Barcelona was cheated by several millions pesetas around 37 years ago by a lot of lab made emeralds (I think they were Chattan ones). The jeweller lost a lot of money....and he was very knowledgable.... He found, but too late.

And, by the way, there are many of us that have those inclusion books?
Myself, I know they exist, I have seen one, but I do not own one....

With best wishes

Lluís
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Riccardo Modanesi




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PostPosted: Jun 09, 2014 08:04    Post subject: Re: is that certificate false .......,  

Hi to everybody!

The issues are two. i) whether the analysis document is genuine or fake. ii) whether the stones are natural or artificial (synthetic or imitation).

Concerning the first issue, you just have to ask the IGL about what you got.

About the stones: they really look like natural, maybe (or better: much probably) treated with Opticon, a high-refraction index oil which hides the fractures and the biggest majority of the inclusions appearing inside the stone. Chatham and Gilson (i.e. hycrothermal or "flux") synthetic emeralds have different inclusion patterns, you can detect it by using a good microscope.
Greetings from Italy by Riccardo.

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lluis




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PostPosted: Jun 09, 2014 08:52    Post subject: Re: is that certificate false .......,  

Till now, Riccardo, till now....

I still remember the times in which Chattan pieces could be identified with a difractometer because they had a line (a think a red line), that was not in the natural ones....
So....

For certificate: It was a real one, but from another company called what I placed (facebook page included). Not from the multinational IGL.Taking in account that a Certificate of Authenticity depends on merits of issuer, well, each one could consider the added value (in stamps have been seen, in an auction, 4 years ago: a number of classical Spanish stamps; with a COA issued by XXXX, saying they were original stamps, mint and with original gum;, but the stamps wereused, cleaned and re-gummed. Original, thought. Issuer of COA was a well known expert that was a wise man, but due to some troubles, he did some not very nice things....)

And, by the way, so many emeralds are treated the way you describe, that I think all people expect it..... :-(

With best wishes

Lluís
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deutsh




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PostPosted: Jun 09, 2014 21:45    Post subject: Re: is that certificate false .......,  

Hi again. I want to show you what is written on the back side of the certificate in question.


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