18ct gold diamond and cubic zirconia bib necklace, the trace link chain suspending to the top 14 collet-set old mine-cut diamonds centred by a round brilliant-cut diamond weighing approximately 1.60 carats, below a chain lattice suspending 14 circular-cut cubic zirconia and terminating in a cluster of round brilliant-cut diamonds, estimated remaining diamond weight 3.80 carats, mounted in 18ct white and yellow gold, gold, weight 51.7gm, length 46.0 cm.