The Queen held several audiences at Buckingham Palace.
Gallery: The Queen presents The Queen's Medal for Music to Sir Thomas Allen at Buckingham Palace, 19 March 2014. ... http://t.co/KxsVfRwVci
— BritishMonarchy (@BritishMonarchy) March 19, 2014
Back to standards after yesterday's intrigue, alas. I think this is now the standard audience brooch, check out the list of appearances in the brooch page linked below...