A diamond, sapphire and pearl necklace

A diamond, sapphire and pearl necklace
The front set with an oval flat-cut diamond between old brilliant-cut diamond collet shoulders with rose-cut diamond scroll detail, to a chain composed of old brilliant-cut diamonds in pinched collets, pearls and bar spacers, the clasp set with two oval-cut sapphire and old brilliant-cut diamond clusters with rose-cut diamond detail and pearl terminals, composite, 45.0 cm long, pearls not tested for natural origin