For the somber appearance, Kate dressed in all black, wearing a black blouse, black wide-leg pants by Roland Mouret, black pointed-toe pumps, and a long black coat from Catherine Walker. As for her ...

Dressed in an elegant all-black ensemble, the princess subtly conveyed her support through her jewelry. She wore Queen Elizabeth's Bahrain Pearl Drop Earrings, Princess Diana's tri-strand pearl ...

She accessorised her elegant black coat dress by Alexander McQueen with a pair of Collingwood pearl earrings that once belonged to Princess Diana, and a pearl necklace by Monica Vinader.

Meanwhile, a five-string pearl necklace–a design from Jewish-owned, London vintage jewelry dealer Susan Caplan–added some shine to Kate’s black sweater. Pearls have been a sign of mourning ...