As Gary recommends, I would also suggest that soft solder not be used.

You don't mention the value of the ring, or how often it's worn.
I wouldn't generally recommend applying a plastic/epoxy product to metal,
but this may be a good solution in this case.. it would be removable and
cause little, if any damage to the ring metals.
A really fast, cheap solution would be hot-glue, which could be trimmed for
a smooth, comfortable filler.

A different approach could be to use a non-staining metal shim (a strip cut
from coin silver flattened into a thin sheet, or a section cut from an old
locket etc) and held in place with double-sided tape or an adhesive.
The D-S tape strip size should probably be a little smaller than the metal
shim to prevent the sticky adhesive from oozing out around the edge of the
metal shim.
An adhesive that works well on metals, which I've rediscovered recently is
named SealAll, which is clear, gasoline and oil resistant and fairly
durable.

I've seen ring resizing doodads in the past which are H-shaped (or upper
case I) so that the center section serves to make the ring size smaller, and
the tabs at the ends are bent to wrap outward and around the ring on the
outside.
These may be suitable, but definitely won't be if the protrusions are
uncomfortable to the other fingers, or if the tabs snag on clothing or other
materials.
Making a similar piece from flattened coin silver would be a thoughtful
project, and if the securing tabs are long enough to meet, they could be
filed/polished smooth so they don't snag (or possibly soldered together but
not to the ring metal).

Another consideration would be if the attachment would remain clean, or is
easily cleaned.

--
WB
..........


"Ivan Vegvary" wrote in message
...
Wife has a gold puzzle ring that is too large for her finger. (Puzzle
rings are four concentric bands that come together showing a pattern
on top of the finger).

Her jeweler wants $150 to re-size the rings. Not going to spend that
kind of money. My wife says she would be more than happy with a
dollop of solder on the bottom inside of the ring to make it smaller.
Of course at the same time it would hold the four bands together
obviating their falling apart. This could all be done by wrapping
dental floss or tape, but not very elegant.

I was hoping to lay a bead of solder on the inside bottom and then
file/sand it down to a smooth circular arc.

Questions: Can this be done? Is it non-destructive and reversible?
Can gold be soldered easily? Do I use a flux? etc. etc.

Thanks for all suggestions and replies.

Ivan Vegvary