Sterling Silver Rhodium-plated Blue Topaz w/1.5in Ext 18in Necklace-WBC-QX907BTMaterial: Primary Purity: 925 * * Stone Type_1: Swiss Blue Topaz * * Stone Color_1: Blue * * Stone Quantity_1: 1 * * Plating: Rhodium * * Stone Weight_1: 9. 5 ctw (total weight) * * Chain Length: 18 in * * Chain Width: 1 mm * * Charm Element Length: 12 mm * * Charm Element Width: 12 mm * * Clasp Connector: Lobster * * Extender Length: 1. 5 in * * Feature: Solid * * Manufacturing Process: Casted * * Material: Primary: Sterling Silver * * Item Weight U