there have been 2 interesting replies to you your question. When I
read it originally, My thoughts were somewhat different.
these were that if, as you describe they are silver gilt, then my
first thought was any soldering a replacement ear wire would most
likely destroy this gilding.
So what next? I thought?
looking at them, if they were mine, id very carefully cut through
with the thinnest saw blade the jump rings holding the large settings
and re hang them where you think a pearl might have been.
then replace the ear wires with a gold ones through the remaining
now top jump rings not soldered for the reason mentioned above. Then
cut off the remaining ear wire flush and clean up. This then is a
reassemble of the components with the form and proportion reasonably
balanced. ie small stone medium stone then large stone. It would be
interesting for you to let us know wether the metal parts were cast
or die stamped.
given the dates you mentioned it could have been either.
What to do then? if you offer them for sale then a honest
description would be in place.
I had an interesting one the other day, A customer showed me some
sterling silver enamelled buttons, set of 6. She bought them as art
neveau. I looked at them and something didnt ring true. I turned them
over and on the back was stamped sterling. Then i realised what it
was. The type face of the stamp was from 1930/40 I told her to take
them back and get a refund. I know where they bought them and was
fairly certain it was a deliberate miss sell.