Gloriously adorned in an array of Swarovski topaz from blazing red to ice blue, this butterfly necklace evokes both classical and modern design. Elegantly framed in sterling silver and suspended from an 18" box chain with 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.