This necklace consists of two rows of natural, very good quality genuine amethyst beads. The beads are 8mm and are hand knotted in between each one. The clasp is 14k (marked) and has a very lovely oval amethyst that is 10mm by 14mm and faceted oval. I can't overstate the beauty of the amethysts, they are jelly like and very clear. The necklace is 15.5 inches in length. The clasp has a security catch and is very nice quality as well.