Vintage fresh water pearl monotone beaded necklace, silver (925) clasp, ivory, silver, purple, prom

This most elegant vintage necklace is made up from pairs of flat round fresh water pearls in monotone shades of silver, ivory, pewter and gunmetal that have an iridescent lustre and sheen. It is wired together so that the pearls sit flat to the neck and the pearls are interspersed with tiny silver tone metal beads.It has silver findings and a silver (stamped 925 ) secure lobster claw catch with a short extension chain so could be adjusted to fit.
Measures 18” without the extension and is 1.5 cm wide. Remains in excellent vintage condition, perfect to add a touch of vintage glamour to any outfit and woukd make a lovely gift.