Princess Kate's touching nod to Princess Diana – did you spot it?

On Wednesday, the newly appointed Prince and Princess of Wales joined King Charles III and Camilla, Queen Consort in the procession of the Queen's coffin to Westminster Hall. The royals wore all-black emotional, adhering to royal protocol, but did you notice Princess Kate's subtle nod to Princess Diana through her accessory choice?

LOOK: Princess Kate pays tribute to Queen with rarely-seen jewel

For the occasion, Princess Kate wore her 'Pearl Earrings' which once belonged to the late Princess Diana, who received the jewels as a wedding gift.

WATCH: Kate Middleton discreetly curtsies to the Queen during final journey - watch

James Constantinou from Channel 4's Prestige Pawnbrokers told HELLO! that Princess Diana wore them over a dozen times either dressed up or down, and they have been worn as many times by Princess Kate to official functions.

SEE: Why royal ladies will wear pearls at the Queen's funeral

A double diamond drop precedes the open-worked diamond setting from which large pear-shaped pearls are suspended.

© Photo: Getty Images

Princess Kate wore earrings that once belonged to Princess Diana

The princess previously wore the earrings while attending the memorial service for the Duke of Edinburgh at Westminster Abbey in March 2022. For the occasion, she complemented the beautiful earrings with a sleek polka dot designer designed by Alessandra Rich.

© Photo: Getty Images

The royal previously wore the earrings to Prince Philip's Service of Thanksgiving

Pearls are often referred to as 'mourning jewellery', a tradition that dates back to Queen Victoria's era.

After the death of her husband Prince Albert, the Queen famously wore black for 40 years and accessorised with either black or colourless jewellery, including pearls. The pearls were thought to represent tears, and she wore strands of them for the rest of her life.

This tradition has been continued for many years, with pearls continually being worn by royal ladies when attending funerals. The late Queen Elizabeth herself wore pearls to Princess Diana, Princess Margaret and King George VI's funerals over the years.

LOOK: Princess Kate's special nod to the Queen as she is pictured at Buckingham Palace ahead of arrival of Queen's coffin

Princess Diana was also seen wearing pearls when attending Gianni Versace's funeral, sporting a single strand of the symbolic beads.

Make sure you never miss a ROYAL story! Sign up to our newsletter to get all of our celebrity and royal news delivered directly to your inbox.