French President Emmanuel Macron has paid on 7th June a State visit to the neighbouring Principality of Monaco. It is the first French State visit to Monaco since 1984, between President François Mitterrand and Prince Rainier III (of course, a lot of official contacts and bilateral visits between the two countries have taken place in the meantime, though it was below the protocol level of a State visit).
Prince Albert II and Princess Charlene hosted on the evening of Saturday, 7th June a State dinner in the Throne Room of Monaco Princely Palace.
No tiara for the ladies - disappointingly but not unexpectedly. Yet, there were quite a few interesting jewels on Princesses Charlene and Caroline.
HSH the Princess of Monaco wore a pair of large diamond earrings, that I would qualify of "rocaille girandoles" style (though the making is visibly recent). I don't remember whether Princess Charlene has already worn these earrings before, and I don't know if they belong to the Princess (or to the Princely collection), or if they were loaned to the Princess by a jeweller.
HRH Princess Caroline of Monaco, Princess of Hanover, has displayed a nice selection of jewels: besides a small diamond line necklace with a matching bracelet, she wore her pair of cushion-shaped diamond drop earrings, at least one (or maybe two?) of her Chaumet sapphire and diamond wings (pinned at the back of her hair) [correction after Baxter's comment: it a diamond-only jewel, without sapphires], and a nice brooch in the form of a diamond fleur-de-lys suspending a large grey/black pearl in a diamond surround. Has anyone information about this brooch?
On the last picture below, she also seems to be wearing on her left hand a ring with a very substantial pearl.