Might be a strange question, but what country is typically known to have the best goldsmiths? One that comes to mind for me is Israel as a lot of intricate beautiful gold pieces I've seen have come from Israel. Where else?
^^^ they do have tons of jewelers in the Grand Bazaar. But they all have basically the same stuff bought from the same manufactures. Who pay the employees that make this stuff practically nothing.
(On the cruise ship we took around the Black Sea one of the pursers educated us on how to shop in the Grand Bazaar.)
Intricate detailed one of a kind, I'd say Florence. Get ready to pay for it though. Lots of this end up in the US & can be eventually found at estate jewelers.