The secret is to complete all finishing and polishing operations
before you set your stones.
Very good point, Tony, and i am now trying to do that, but do find
that sometimes after setting,
a bit of a buff is nice? Or a heavily worn piece?
Ultra sonic with dish soap (maybe a touch of ammonia) or a
purchased cleaning solution. Steam if you have one. Boiling or
near boiling in the same type solutions works too.
My one and only brief encounter with an ultrasonic cleaner caused the
most beautiful, iridescent colours on some sterling earrings. I
returned the cleaner after that. No idea what happened, may have been
the well water at my parents’ place (they have had trouble with
sulphur too). I’ve been hesitant since. I think that I read
something about not using steam on Argentium, will look that up
again. Maybe an off boil then. re. firescale - I’m using Argentium
silver only, so it must be the compound.