Necklace with ruby navettes and 22 brilliant-cut diamonds,

Collier with 7 rubies, from 5.4 x 2.6 to 6.5 x 3.2 mm, 22 brilliant cut diamonds, totalling ap. 1,9 ct, WHITE (H)/VS, 18K white gold, 35.9 g, L: 44 cm, box clasp, security catch, 2nd half of 20th century, minimal signs of wear.