148. SAPPHIRE AND DIAMOND NECKLACE, CIRCA 1925 Forming a succession of geometric links set with old-cut and 8/8-cut diamonds, alternating with eight sapphire cabochons, French import hallmarks for platinum (850°/00) and 18K gold (750°/00), length 45.00 cm, gross weight 39.22 g. SAPPHIRE AND DIAMOND NECKLACE, CIRCA 1925 Designed as a succession of geometric links, set with old brilliant- and single-cut diamonds, alternating with eight sapphire cabochons, French import marks for platinum and 18 carat gold, length 45.00 cm, gross weight 39.22 grams.