Ascher-Cut White Cubic Zirconia Platinum over .925 Silver Halo Hexagon Pendant Necklace 18" Platinum Over Sterling Silver. Quality Stamp (.925) 48 Cubic Zirconia Stones Item Measures 18 mm Wide x 5 mm High x 28 mm Long 16" Chain Included. Lobster Claw Clasp. 2 inch extension Imported