Insider Exchange

What is the wholesale value of this 16.9 ct Columbian Emerald?

I have a 16.9ct emerald to value and was wanting to see what you Poly folks thought. It is pale, slightly bluish green, due to chromium, just enough to still be called an emerald. It is quite clean for a type 3 stone but does appear to be clarity enhanced.  It would probably grade as "minor" clarity enhancement.  It is peppered with tiny pyrite crystals, as well as 3-phase inclusions.  My understanding is that these inclusions would suggest the Chivor area of Colombia as its origin. What would you value it at?

Columbian Emerald - Polygon Columbian Emerald 2 - Polygon Columbian Emerald 3 - Polygon


I'm old school and would argue in favor of green beryl rather than emerald, but this has often depended on whether you are a buyer or a seller! Definitely Colombian and (poorly) treated, I'd say 75/c wholesale.

Member 1348

Thanks, I appreciate your input; your insights on this type of thing are invaluable.  In terms of the emerald/green beryl thing, some say its green beryl if colored by iron as opposed to chromium.  This is definitely chromium base on the chelsea filter reaction.  Given that, even though the color intensity is borderline, might that push more for the emerald rather than green beryl?

Member 90065

Old school is just that. We also are old school.

We had a poly dealer from Texas recently show us a nice clear very light emerald. I said green beryl. One of our GG's said green beyrl. Guy produces a cert from GIA.Emerald. Showed to our other two GG's and both (without seeing the cert or knowing what we said) said "green beryl." Lightest thing we have ever seen called "emerald."

Member 330

This is a problem with GIA or any other lab for that matter. Where is the line between green beryl and emerald? How about pink sapphire and ruby? It is IMPOSSIBLE to draw the line! Why not call it green beryl and supplement that with light, medium, medium dark, dark green etc? Same with the ruby/sapphire scenario- call it corundum- reddish pink, purplish pink, purplish red, etc. Thats how they do it with fancy colored diamonds. Color should be a no brainer.

Member 48189

About Polygon