I have an older flat herringbone style necklace. It’s just under 18 inches long. It’s gold tone but sticks to a magnet so I don’t know what the metal actually is. The clasp goes through a hole in the other end but would be better with the addition of a little jump ring. It’s in good condition but there’s a little spot where the gold is a little dull (see the last picture). See my other ads for jewelry, artwork, home decor and more.