A pear-shaped paraiba blue Swarovski topaz framed by double rows of white topaz is the elegant centerpiece of this lovely necklace for her. Crafted in sterling silver and suspended from an 18" box chain with a 2" extender. Secured by a spring ring clasp. Made with genuine topaz that has been permanently treated by SWAROVSKI's patented Thermal Color Fusion™ process. Thermal Color Fusion™ is a color treatment process that creates a permanent ceramic color layer on the topaz.