First worn to the opening of Ronald McDonald House Evelina London in 2017, Kate originally wore the set with a deep navy suede clutch and sapphire earrings that perfectly matched her famous sapphire engagement ring.
For this week's event, Kate switched out the sapphires in favour of a pair of rose-gold drop earrings from Missoma—which are still in stock.
Missoma Rhodochrosite Gold Pyramid Charm Hoop Earrings, $155; at Missoma
Kate has been completing most of her royal engagements via Zoom the past several weeks amid London's COVID-19 lockdowns, and recently shared new insights into her relationship with Prince William.
During a recent video call with fellow parents, the royal mum-of-three was asked to share who her "greatest support" has been throughout the pandemic.
Revealing her answer, Kate held up a piece of paper that read: "William."
"That's lovely, lovely to hear. We don't want it to be Bridgerton or something like that, do we?" said moderator Melissa Loosemore.
"This has been really difficult for lots of families, not being able to rely on their usual support systems," Kate added.