How much would an antique 18 carat gold ring with a diamond and filigree cost? Perfect condition.
I have one. It was my mother-in-laws grandmothers. It's priceless as far as I'm concerned. Get it appraised and insured.
I don't know, but how do you even get a ring like that? Is it an antique or something? passed down in your family maybe?
It is impossible for us to know. You should get it appraised by a professional.