March 26: The Queen held audiences at Buckingham Palace.
Not a lot of luck on the brooch front these two days (this one could be the Pearl Triangle). We do have some splendidly attired guests, though: Her Excellency Aleksandra Joksimovic, Ambassador from the Republic of Serbia, with her husband Sinisa Krajcinovic here...
March 27: The Queen held audiences at Buckingham Palace.
...and His Excellency Tarek Adel, Ambassador from the Arab Republic of Egypt, with his wife Mona Said here. 10/10, would like to see this hat at Ascot.