:sun:
Please have patience - I'm sure we'll get there in the end - it's a beautiful piece and very well-made. I can see the top rim is polished and bevelled - nobody is likely to go to the trouble of that standard of finish on something that isn't good. It's still a bit difficult to see how the base is finished, though. A photograph taken at an angle would help.
Is it completely flat?
Is there a "well" of some sort in the middle?
We don't "do" valuations here - they're very subjective.
In the end, something is only ever worth what somebody is willing to pay for it.
(but I think a few folk might like to own this very much.)