Over the weekend, Meghan Markle made a public appearance at Trooping the Color, a parade celebrating the queen’s official birthday (apparently, Queen Elizabeth has two birthdays: April 21 is the day she was actually born, but official celebrations occur each year on the second Saturday in June). Markle rode in a carriage alongside husband Prince Harry, clad in a navy dress by Claire Waight Keller for Givenchy—who designed her wedding dress—and a hat by Noel Stewart. It was the Duchess of Sussex’s first official royal outing since the May 6 birth of her son, Archie Harrison.

Markle looked lovely, as per usual. But fans noticed a new accessory. When the duchess was photographed waving to the crowd, eagle-eyed royal watchers noticed that she sported a new ring, in addition to her wedding band and engagement ring. Markle now wears a diamond band, sandwiched between the other two rings. Fans speculated whether the new bling was a push present from Prince Harry.

As it turns out, it’s actually an anniversary present. People reports that the ring is an eternity band from the prince, a gift designed to mark a milestone. The royal couple recently celebrated two: the birth of their son, and their first wedding anniversary on May 19. Eternity bands feature diamonds wrapping the circumference. And Prince Harry isn’t the first royal to give one as a gift—Prince William gave Kate Middleton an eternity band after the birth of their son, Prince George.

Markle’s engagement ring was designed with personal history in mind. It features a large diamond from Botswana—the country where she and Harry first traveled together, and it’s also one of the Prince’s favorite places in the world. The diamond is centered between two smaller stones from the late Princess Diana’s personal collection. It’s a piece of jewelry rife with meaning. The diamonds on the eternity band presumably also include some sort of symbolism. It’s good to be a royal.