Victorian romantic era green tourmaline and diamond cluster ring

Victorian romantic era green tourmaline and diamond cluster ring in silver on 14kt yellow gold. Centrally set with a cushion shape mixed cut green tourmaline in a silver tri-claw setting, surrounded by six rose cut diamonds in silver cut down settings, to a fancy cluster ring featuring pierced openwork in silver, curving claws and met to either side with trumpeting shoulders decorated with chased and engraved stylised motifs which smooth to a solid shank.