Kate’s earrings were originally part of a jewellery suite given to Diana by Crown Prince Fahd of Saudi Arabia as a wedding gift, according to Us Magazine.
The blue and silver earrings were originally studs when worn by Diana, but Kate redesigned them into drop earrings.
Royal fans were quick to comment on Victoria’s outfit last week, with many praising her style.
Catherine Duncan wrote: “Another beautiful outfit by Victoria, something the rest of us could wear instead of being out of reach.”