Princess Anne wears poignant gold diamond brooch in Uganda that she's owned since 1969

However, the ribbon brooch also works for more upbeat events, like the annual Royal Ascot races.

Anne wore the brooch with a pale blue ensemble at Ascot in June 2016.

For many years now, Princess Anne has chosen the brooch for Easter Sunday services at Windsor.

For instance, she wore the brooch on Easter in April 2017, and also wore it pinned to a blue coat on Easter Sunday back in April 2018.