A sapphire, diamond and cultured pearl Hasli necklace, India

A sapphire, diamond and cultured pearl Hasli necklace, India, designed as a tapering collar formed of three articulated sections with a fourth hinged section to the back, decorated with stylised flowerhead motifs set with lasqué-cut diamonds to a blue enamel ground, suspending a border of cultured pearls above a fringe of sapphire beads, cultured pearls and blue paste beads, the reverse decorated with elaborate white, green, red and blue enamel in floral pattern, pearls untested, inner circumference 46cm