An early 20th century garnet and split pearl necklace

rubover set round faceted garnet, diameter 6.5mm, pierced border set with eleven split pearls, each set into a floral collet, suspending a split pearl trefoil and round faceted garnet dropper, suspended from a trace link chain and separated by a round faceted garnet, total length 52cm, bolt ring clasp, unhallmarked, stamped '9CT', weight 4.8g