18k solid gold bead necklace

Beautiful 18k solid gold long bead necklace. This piece has been tested and is stamped 18k Italy. It’s about 26” long thin but well made solid piece close to 4g. If you know about gold, bracelets and chains with lobster claws have a small spring that will be picked up by a strong magnet, that’s NORMAL it does not mean it’s fake! now if the whole bracelet or chain is being picked up by the magnet then it’s most likely plated or filled not solid gold. Please do your research on gold! don’t be that person that has no knowledge and just assuming they are getting a great deal understand the difference between solid and fake/plated/filled gold. Thank you.