27. DIAMOND NECKLACE Ornamented with three main old cushion-cut diamonds and seven old-cut diamonds, on a white gold chain, French import hallmarks for platinum (850°/00) and 18K gold (750°/00), length 42.00 cm, gross weight 6.34 g, accompanied by a presentation case signed Dusausoy, 4 Bould. des Italiens, Paris. DIAMOND NECKLACE Set with three principal old cushion-cut diamonds and seven old brilliant-cut diamonds, to a white gold chain, French import marks for platinum and 18 carat gold, length 42.00 cm, gross weight 6.34 grams, accompanied by a fitted case stamped Dusausoy, 4 Bould. des Italiens, Paris.