74. RIVIERE' DIAMOND BRACELET Closed setting of a fall of old-cut diamonds on a supple mounting, French import hallmarks for platinum (850°/00) and 18K gold (750°/00), length 17.30 cm, gross weight 18.11 g. DIAMOND 'RIVIERE' BRACELET Designed as a graduating row of collet-set old brilliant-cut diamonds, French import marks for platinum and 18 carat gold, length 17.30 cm, gross weight 18.11 grams.