My husband gave me a radiant diamond engagement ring about 1.28 carats set in platinum with custom engraving. I also have a wedding band that is a half eternity band with about 1.3 carats of diamonds. I'm trying to sell my rings in order to have a custom ring made. How should I go about selling these rings to get the most money? The engagement ring is certifed but the eternity band is not.
Thank you,

