Ring with South Sea pearl surrounded by sapphires and diamonds totaling approx. 5 ct,

Ring with baroque South Sea cultured pearl 15x12 mm, with silver-grey-blue lustre, surrounded by 3 navette-cut sapphires and diamonds in different cuts totalling ca. 0.5 ct, ca. RW-WHITE (G-H)/VS-SI, 18K white gold, 8.4 g, ring size 58, 1970-80s, minor signs of wear and work.