Art Deco sapphire, diamond and pearl pendant sautoir necklace

The highly articulated cascade pendant set throughout with cushion-shaped, old brilliant and single-cut diamonds, with a central sugarloaf cabochon Ceylon sapphire, weighing 5.90 carats, terminating in three old brilliant-cut diamond drops, suspended on a two row uniform pearl necklace, connected at intervals with similarly-cut diamond and calibre-cut sapphire buckle-shaped links, to a cushion-shaped purplish-blue sapphire clasp, mounted in platinum, French assay marks, workshop marks for MR, accompanied by a photocopy of the report from GCS report no. 5777-9323 stating that sapphire weighing 5.90 carats is of Sri Lankan origin, with no indications of heating
Overall length open 88cm / 35''
Weight: 66g