Jade of Yesteryear Blue Topaz and Charcoal Jade Fish Design Necklace Indulge in a little oceanic glamour with this blue topaz and charcoal jade drop pendant necklace from Jade of Yesteryear. Approx.18"L; drop approx 4"L x 13/16" W Stamped .925 sterling silver; rhodium plating Cable chain with spring-ring clasp Stone Information All sizes and weights approximate Charcoal Jade - Smooth bead (11.5-12mm, 9.5-10mm) Blue Topaz - Round; 0.31ctw Swiss Blue Topaz - Round; 1.46ctw