Is this a vanadium chrysoberyl?

[glitterata]

I bought this chrysoberyl ring from TRR, alerted by the SGBTP thread. It's 2.23 ct, nicely cut, no window, a very pretty minty green. It glows bright red under my 395nm uv flashlight. In incandescent light, all the color drains out, leaving it silvery.

Do you think it's a vanadium chrysoberyl?





With my yellow chrysoberyl at the right:



UV flashlight:



Incandescent light (the only one left in my apartment--a nightlight--apologies for the dusty wall!):

 

[Autumn in New England]

Could be, but it would really need to be tested for traces of vanadium to be sure. Pretty piece regardless... enjoy!!

 

[Starstruck8]

I'm thinking it could be a 'weak alexandrite', i.e. coloured by chromium. This would be consistent with the colour shift and the fluorescence. Of course, it may have some vanadium as well. You would have to test to know for sure.

The stone in this old post seems a bit similar:
https://www.pricescope.com/communit...oberyl-with-fluorescence.238571/#post-4300483

Whatever it is, it's an attractive stone.

 

[Saphir]

Tourmaline has no fluorescence

 

[glitterata]

Tourmaline has no fluorescence

I got it from TRR, and it came with their gemologist's "valuation report" declaring it to be a chrysoberyl. It looks and behaves like a chrysoberyl; I have no reason to think it's NOT a chrysoberyl. My question was whether it was an ordinary chrysoberyl or a special one, such as a v-chrysoberyl or alexandrite. (It doesn't change color enough to be convincing as an alex, though.)

I guess I could send it to a lab, but that would cost as much as the ring itself. Well, depending on the lab.