Necklace with sapphires and approx. 60 brilliant-cut diamonds totaling approx. 4.15 ct,

Necklace with 3 sapphires totalling ca. 4.55 ct, marine blue, pear- and navette-cut and ca. 60 brilliant-cut diamonds totalling ca. 4.15 ct, ca. STW-TIW (J-K)/SI2-I2, stone weights engraved, 18K white gold, 29 g, L: 45 cm, 2nd half of 20th century, nice condition, nice workmanship in jewellers quality, case included.