Bonhams 1793 : A tourmaline and diamond pendant/brooch, Takashi Wada

centering an abstract pentagon-shaped bicolored tourmaline within a stylized silver and gold surround, accentuated by ten round brilliant-cut diamonds, suspended from a ten karat gold chain; pendant signed TAKASHIW; estimated total diamond weight: 1.75 carats; mounted in eighteen, fourteen karat gold and silver

Sold for US$ 3,050 inc. premium