I love this necklace and I don’t know a thing about it. The flat oval bead is covered with tiny black shiny stones. The necklace is, without the drop, 22” long and it has silver colored beads. It has 2 ¼” long drop. It has a toggle clasp also in black metal. I love the look of it and that’s all I know. I do not believe that the silver colored beads are sterling silver.