An Art Deco Platinum, White Gold, Jade and Diamond Convertible Necklace, consisting of a detachable central pendant/brooch composed of two pierced and carved mottled white and green oval jade plaques measuring approximately 36.00 x 27.00 mm and 37.00 x 23.00 mm, the lower plaque set within a partial platinum surround and both plaques studded with numerous bezel settings, pendant/brooch has detachable white gold brooch fittings and is suspended from a detachable back chain composed of two pierced and carved mottled white and green oval jade plaques measuring approximately 22.00 x 12.25 mm within partial platinum surrounds and studded with numerous bezel settings extending to the white gold serpentine chain, necklace contains four old mine cut diamonds weighing approximately 2.50 carats total and numerous old European and round single cut diamonds weighing approximately 3.25 carats total. 25.90 dwts.