A five row cultured pearl necklace with diamond-set clasp

A cultured pearl necklace with diamond-set clasp, comprising of five rows of pearls each mesuring approximately 5.5 x 5.5 mm attached to /a convertible Victorian diamond scroll brooch/clasp, set to the centre with a row of graduating old brilliant-cut diamonds and two marquise-cut diamonds set vertically, within a scrolled panel set throughout with old brilliant-cut diamonds, estimated to weigh a total of 8.5cts, circa 1880.
Gross weight 74.91 (clasp sold separately)