Brooch - pendant in gold and silver with pearls, diamonds, and chalcedony

Brooch - pendant in gold and silver with pearls, diamonds, and chalcedony late 19th century
the brooch can be disassembled and used as a pendant, a typical characteristic of jewellery of the era, with silver and yellow gold mount, with plant motifs, embellished with huit-huit and rose-cut diamonds, strands of pearls with a diameter of 3 - 4 mm, pendant pearls with a diameter of 6 - 8.5 mm and drop rubies.Dimensions: 13.5 x 7.5 cm. Total weight: 66.2 g. Item condition grading: **** good.The lot is in a good state of preservation with the normal wear and defects commensurate with its age and use over time. Apparently not hallmarked; verified with XRF spectrometer is guaranteed to be gold at the approximate fineness of 18k.