Cartier Tutti Frutti
It is most likely a necklace and bracelet and earrings (worn earlier, not this weekend) purchased by Cartier Paris.
From Cartier: "Tutti Frutti (Italian for "All fruits") is the name of a multicoloured line by Cartier. Necklaces, bracelets, brooches, pins, earrings and decorations for evening bags are decorated with multicoloured precious and semi-precious stones, joyfully mixing the colours of emeralds, sapphiers, rubies and other coloured stones.
Some of these precious stones are cut in leaf or flower shapes. Some versions have polished stones while others make a more robust appearance. The engraved stones are mounted in a platina frame. Tutti Frutti is a registered trademark of Cartier."