A diamond and seed pearl choker necklace

A diamond and seed pearl choker necklace, the early 20th century square-form centre piece with lattice form centre section set overall with rose-cut diamonds within a similar border, suspending an articulated festoon with two cultured pearls and further rose-cut diamond drop, in silver on gold, 6cm wide, with sixteen strands of seed pearls, two gold spacing bars and a similar shaped gold clasp, 35cm long