I need to solder a jump ring on a very thin 14K Gold chain for a
friend, but never having worked in 14K I only have 18 K solder. I
seem to remember learning that you cannot use solder of a higher
karat than the metal you are soldering. Is this true? If so,since
I don’t want to buy 14K solder if I can help it, is there any other
way I can fix this chain? There are no loops to which a jump ring
could be connected.