French Art Nouveau Diamond and red Tourmaline brooch.The central drop shaped and cushion set Ruby red Tourmaline is surrounded by brilliant cut and claw set Diamonds in fine open work design. The Diamonds are of very good quality and weigh together about 1.7 carats, the drop shaped Tourmaline weighs about 0.5 carats. The mounting is made of Platinum (hallmarked with the French dog´s head) , the pin and safety closure are made of eighteen karat yellow gold(acid tested). The pin is in perfect condition and dated at about 1900.
Art Nouveau Diamond and red Tourmaline brooch, Platinum and yellow gold,ca.1900