Necklace with 3 freshwater pearls,

Necklace with 3 fresh water pearls, rose coloured, round, D: 2.5 mm, grey baroque, 9.7 x 7.9 mm, white baroque 6.4 x 4.8 mm, round sapphire cabochon, 3.7 mm, round ruby cabochon, 2.3 mm, 18K yellow gold, 16.0 g, L: 48 cm, S-hook, 1970s, minimal signs of wear,