18ct gold, gem-set and diamond 'Parentesi cocktail' necklace, Bulgari, circa 2009, designed as a graduated line of spectacle and claw-set rose-cut gemstones including blue topaz, amethyst and citrine, flanked by tapered batons pave-set with brilliant-cut diamonds between similarly set annular links, inner circumference approximately 400 mm, signed Bulgari, maker's marks, accompanied by a Bulgari certificate and box.