Carol, At the school, students are forever getting into that kind of
trouble. So we have to do a lot of ‘unsoldering’. My normal
procedure is to go through the entire soldering protocol…alcohol,
Prip’s flux, then place the item into a third hand if you can get a
good grip on it somewhere, put Battern’s flux around the place to
unsolder and begin heating gently but fairly rapidly. If it takes too
long, you could burn off the flux protection and end up with
oxidation anyway. As the piece reddens, gently pull the bezel cup
with tweezers or nudge it with a soldering pick. When the solder
melts it will simply pull, fall off, or be pushed off the shank.
Make sure it is completely clear of the shank though as the slightest
contact could result in its being soldered somewhere else where you
don’t want it.
Good luck and cheers from Don at The Charles Belle Studio in SOFL
where simple elegance IS fine jewelry! @coralnut1