Vintage Graduated Aventurine Bead 24 Inch Necklace 14K Ball Beads 14K Clasp. First the clasp is a royal pain and while we labeled it a ?spring ring? it?s not really a ring. But it is a spring we think. On that spring are marks that might contain 14K in the middle but it?s so tiny that even with a loupe we couldn?t read it very well. So we scratch tested it with 14K acid and the photo you see is how it held 20 minutes later. We assume the gold balls are also 14K but even with as many as are in there, the weight is negligible. We bought it hoping it was jade but it appears to be aventurine which still looks beautiful. Plus everyone will assume it?s jade and you won?t have paid jade pricing for it. Necklace is 24 inches long and the beads are graduated meaning larger as they get toward the middle. Beads increase from 6 mm to 8mm to 10 mm in size. Will ship USPS with tracking to winning buyer