Adam's FINE JEWELLERY & WATCHES 7th December 2021

113 152 A UNIQUE TOURMALINE, DIAMOND AND TITANIUM COCKTAIL RING, BY MARGHERITA BURGENER The central cushion-shaped green tourmaline weighing 14.84cts within a double four-claw setting and a brilliant-cut diamond frame, to a volute openwork gallery highlighted with similarly-cut diamonds, mounted in titanium and 18K white gold, diamonds 3.03cts total, signed Margherita Burgener, Italian assay mark,with maker’s case, ring size M½ (53) € 10,000 - 15,000 Accompanied by a report from Centro Analisi Gemmologiche in Valenza Italy, stating that the green tourmaline weighing 14.84cts is natural. Report number C60065, dated November 2020 153 AN OPAL, TOURMALINE AND DIAMOND FLOWER BROOCH, BY MICHELE DELLA VALLE The stylised rose, set with polished pink opal petals and a polished green tourmaline leaf, the stem embellished with baguette-cut diamonds, mounted in 18K gold, diamonds approximately 2.00cts total, signed Michele della Valle, numbered, with maker’s pouch, length 9.8cm € 4,000 - 6,000