Spring Fling" is Fine Silver, made with PMC. It is inlaid with Polymer clay. This piece also has a super flashy Australian opal doublet, a lovely rainbow topaz and a green bullet cabochon that I believe is jasper. The necklace measures approximately 2.4" x 2.4" 62mm x 62mm the circle link chain is sterling silver and 17" long with a large lobster claw clasp. It is stamped on the back with artists mark and 99.9FS