the central pendant of geometric design set to the centre with a round-cut green tourmaline weighing approximately 10.90 carats surmounted by baguette-cut diamonds, set to an open-work frame pavé-set with round brilliant-cut diamonds, weighing a total of approximately 1.15 carats, to a detachable cultured pearl necklace, length approximately 375mm; with an additional green silk cord, with gold terminals, length approximately 330mm