Meghan Markle surprised Prince Harry with wedding veil details

One sweet secret, however, has just been revealed by the Duchess of Sussex herself.

It was the "something blue" that she incorporated into her wedding day ensemble.

Prince Harry and Meghan have attended an event in the United Kingdom to encourage young people to become sports coaches, as they prepare for their royal tour to Australia next month.

The silk gown, designed by Clare Waight Keller for Givenchy, features a boat neckline and a sculpted waist.

The former "Suits" actress wore a black belted Givenchy dress with sheer sleeves, Aquazzura heels and a Givenchy clutch. On Tuesday though, it was all about Meghan, no family party crashers in sight.

Keeping jewellery to a minimum, Meghan opted for silver earrings that glittered through her gorgeous locks.

Meghan Markleis flying solo for the first time.

The Oceania exhibition brings together around 200 works from the Oceania regions of New Zealand, Fiji, the Kingdom of Tonga and Australia.

The exhibition - the first ever major display of Oceanic art in Britain - also marks the 250th anniversary of the Royal Academy, which was founded in 1768.

Reportedly, the Duke and Duchess of Sussex made a special appearance in the new Queen Elizabeth II documentary, Queen of the World featured on HBO where she reveals the secret.

Her Royal Highness will also meet the exhibition's curators and artists as well as descendants linked to the works displayed and view a short performance of Ngāti Rānana, a Māori cultural group.

Meghan, on the other hand, visited the Royal Academy of Arts in central London for the opening of the Oceania art exhibit.