Is 24 kt gold over sterling silver worthless?

pretty much, but if it looks good and no one knows it a-okay!!

NO! It depends on the maker, the condition of the piece, how old it is, how well its been cared for, whether it's signed and other things that collectors look for.

Some people collect vintage jewelry, costume, gold plated, gold filled, sterling silver, vermeil, and fine.

If you have a lovely piece of plated jewelry, particularly if its signed hang on to it.

If you love it... by all means wear it but remember the 5 no"s

NO -showering, swimming, sweating, sleeping, spraying.

If it is worn next to your skin when you take it off wash it with a gentle soap and gently dry with a soft cloth and it will last if cared for.