A Belle Epoque mother of pearl, seed pearl and diamond pendant, circa 1900, set with a section of

A Belle Epoque mother of pearl, seed pearl and diamond pendant, circa 1900, set with a section of mother of pearl finely carved in shallow relief with a depiction of the Madonna, within an openwork halo set with rose-cut diamonds, to an outer oval frame bordered with seed pearls, suspended from a rose-cut diamond bail, length 5.5cm including bail, pearls untested