enlarge a plain platinum ring about 2 sizes bigger and the ring is
Well, Anna, from all that you say I’d suggest that you refuse the job
and refer them to a platinum-qualified goldsmith. Yes, you could bang
it up the mandrel eventually. That’s going to thin the ring
considerably and give you a huge polishing job. Just the filings are
likely going to be worth around $100. That may sound good, but that’s
the customer’s platinum we’re talking about. What you ask ~can~ be
done, but it’s not how it ~should~ be done.