An art deco lapis lazuli and diamond demi-parure, circa 1930  The collar necklace composed of a series of curved rectangular and semi-circular shaped links, each millegrain-set with old brilliant-cut diamonds, set alternately with bevelled rectangular lapis lazuli plaques, to a concealed clasp, with a pair of pendent earrings and bracelet en suite, diamonds approximately 16.5 carats total, length of collar necklace 37.0cm., length of bracelet 18.0cm., length of earrings 5.4cm.