These are in used wearable condition. I believe the necklace is Zuni. It is not signed, which would typically mean it is an older piece. There are some numbers inscribed on the back, but I do not believe they mean anything to this piece other than the store may have engraved it years ago when they had it for sale. It does not say 925 or Sterling anywhere on this that I can see, but it is not magnetic. I did an acid test on this, and I tested the chain and one of the pendants and the chain stayed fairly bright red like it would be Sterling and pendant may have been a little brown, which would lead me to believe that it is the 80% silver, but I am half colorblind so please see the pictures to make your own judgment. The earrings I did not test, but they are marked sterling. I believe those were Zuni as well, possibly Navajo. As I said, I am no expert on any of this so please consider yourself just buying a pretty necklace and pretty earrings. None of this is magnetic either. See pictures for condition detail details as they are part of the description. As is. All sales are final. Thanks for looking.