What is the stone and what is it worth

[Bangkok-best]

Hi, I am a newbie to colored stones but i have this one in my collection for more than 40 Years,...
it came in a set and i never get them certified,... i am submitting the stone to the AIGS lab in Bangkok.
Maybe one of you guys can beat the results to the lab,

What kind of stone,...
Emerald cut, 12x20 mm table !
Origine, this one I am pretty sure
Ct size, and value,...
It is not for sale but then you never know,...
I will have an answer by the weekend,....

So anybody in for a brain challenge ?

Here some pictures.

http://www.pricescope.com/files/images/img_0142_0.JPG[/img

[ATTACH=full]575742[/ATTACH]

 

[marymm]

Without more info/photos, I'd guess Aquamarine... I look forward to hearing the AIGS results.

 

[larryfish]

because stone is not rough, one can only speculate its identification. It is cut, shaped and polished.
I look forward to its ID.

 

[smitcompton]

Hi,

I'd guess tourmaline.

Annette