Visit some of your local independent jewelery stores, the "Mom and Pop" stores or even a local pawn or gold buying place.
My suggestion is to go in and tell them your wife is interested in vintage or estate jewelry and if they had anything in a bracelet,or necklace that might fit the bill. Most rings and pendents are de-stoned and thrown into the scrap pile unless they have no stones. Scratches can be buffed out, clasps should be checked for functionality. A broken clasp can run some extra bucks so check items carefully.
I have sold a few pieces on occasion that were in my melt pile.
But...a few tips, most store owners are not going to go in their back room and come out with a box/bag of their melt and let you casually go through it.Try to be specific on the item you are looking for, not just "what do you have". if you ask for a bracelet, and he has none he may just offer something else for you to look at.They will get more from you than the smelter, its all about your approach. leave them your name and number if they don't have anything or if they are busy.
Most gold buying places have to hold their goods for a specified time, it depends on that town's or city's regulations...so they may have something become available before it's off to the smelter.
Being friendly and having an idea of what you want will go along way. If they seem put off, remove them from your list.
I can only speak on behalf of myself, I am in Business, why would I turn away
a potential sale?
Good luck. RK