Women's Formal Crystal Collar Necklace Set. Elegant Formal Evening Necklace Featuring a Silver Metal Graceful Leaf Design V-Shaped Silhouette with Stunning Royal Blue Glass Crystal Gemstones Plus Aurora Borealis and Blue Rhinestone Detailing. Radiant Sparkle and Refined Symmetry. Silver Metal Lobster Clasp Closure. Center Drop Measures 3.5 inches. Includes Matching Drop Crystal Earrings Measuring 1.75 inches.