The Queen's Diamond and Pearl Leaf Brooch

Chris Jackson/Getty Images Queen Elizabeth II's brooch collection is so vast that often pieces go unseen or unworn for years -- or even decades! Today's piece, her Diamond and Pearl Leaf Brooch, was one of

Kate wears the Queen's pearl leaf brooch for lying-in-state ceremony

Kate pays tribute to Queen and Princess Diana with meaningful jewellery at procession - OK! Magazine

How Meghan Markle and Kate Middleton Honored Queen Elizabeth at Her Service

Kate Wears Diana's Pearls (and a New Brooch!) at Westminster Abbey

ROYAL MAGAZIN Schmuck und Juwelen der Deutsche Fürstenhäuser

Wait, Kate Middleton Casually Unveiled Never-Before-Seen Jewelry

Kate Middleton, Meghan Markle Mourn Queen Elizabeth II Together

Earrings may vary: The Princess of Wales wore Diana's pearl drop earrings to Queen Elizabeth's procession. Remember the delicious rumor that the earrings Meghan wore were £50 gift shop replicas, not Queen

All of the moving photos from Queen's procession from Harry and William's reunion to Meghan and Kate's tributes - OK! Magazine

Kate Middleton's earrings at Remembrance Sunday honour Queen Elizabeth

The significance behind Princess Kate's diamond and pearl brooch

Kate Middleton wears pearls and black veil to Queen's procession service

Kate Middleton wears pearls and black veil to Queen's procession

Queen Elizabeth II Jewels