Can 18carat gold engagement ring and wedding ring setting be changed to white gold or platinum?
Yes, yellow gold can certainly be dipped in rhodium, is it recommended? Some say no. It really will depend on the setting, normally stones aren’t removed. However, will it last, no, not permanently. The rhodium will wear, and you will need to redip. It takes years to wear down. Cost of a rhodium dip, 20-100 dollars. To buy a platinum setting and have it reset, could be 1000, if it were a solitaire only, then easily half that. Take to a jeweler and ask an opinion, be sure its a jeweler, not just a jewelery store. Look for advertisements in the phone book of a jeweler on site, these places will advertise same day work. A white gold setting would cost 500-700.