Women's Collar Necklace Set. Silver Metal Round Link Chain Necklace Featuring Collar Comprised of 3 Polished Curved Wavy Edge Textured Metal Plates with Aurora Borealis Rhinestone Details. Collar Plates measures 7.75" x 2.15". Lobster Clasp Closure. Includes Round Aurora Borealis Rhinestone Stud Post Backing Earrings.