If there is a stone with multiple uses over the centuries this is definitely lapis lazuli. The ancient Egyptians melt the stone and used the dust to paint the eyelids of their eyes, while the Renaissance artists used lapis to decorate the mosaics of the cathedral churches. The unique intense blue color is so identified with this stone, that in many Romance languages the word for blue color derives from the name etymology of this stone.
Necklace, bracelet, ring and earrings in 18 karat yellow gold and lapis lazuli.
The pieces can also be sold separately.