Group of two necklaces and a bracelet

A- Briolet cut sapphire necklace alternated with irregular shaped pearls and briolet cut rubies, 18kt two color gold clasp, length 37 cm. B- Briolet cut sapphire bracelet, alternated with ruby spheres and small pearls, 18kt gold clasp, length 19 cm. C- 18kt gold necklace and briolet cut emeralds alternated with irregular shaped pearls, sphere rubies and central briolet cut ruby, 18kt gold clasp, length 41 cm., peso 27 gr.