Polished Spectrum by Avon from 1986 - puffy squares of plastic in green, orange, purple, black and tan imitations of semiprecious gemstones. Necklace is choker length, measuring approximately 17-1/2 inches long and about 3 inches wide. Previously owned and looks like new. Not signed, but identified on Page 65 of Identifying Avon Jewelry by Sandra Sturdivant. A beautiful, versatile necklace that will complement a "spectrum" of this fall's popular colors!