Cost of Soldering Diamond Studs to a Ring: Expert Advice

Question
Wanted to know about how much it generally would cost to solder my diamond stud earrings onto my solitare ring?

Answer
I am assuming you want to remove the prongs from the earings and have them soldered onto a ring.. hopefully both metals are the same carot and color.. it may be a little involved my best suggestion is to try to get a recommendation of at least two good goldsmith... and get two separate quotes...
regards Rolfe