This necklace features a 6-color fused glass rainbow design pendant on an 18" black leather cord with .925 (Sterling Silver) spring ring clasp and pendant bale. The pendant is 1.25" round and 6mm thick. The colored glass pieces were first fused together into a color bar which was then diamond-cut into rainbow slices. A second firing together with a clear layer of glass was accomplished to create the circle shape. Glass pendant is handmade in USA. Comes in jewelry box.