Princess Diana's former butler Paul Burrell thinks Prince Harry's romance with Meghan Markle is a "lovely thing to watch unfold".

Paul Burrell

Paul Burrell

The 33-year-old royal's engagement to the former 'Suits' actress was announced on Monday (27.11.17), and Burrell has revealed he's thrilled to see Harry and his bride-to-be so happy with life.

He reflected: "It was clearly, 'This is love'. They adore each other and it's a lovely, lovely thing to watch unfold. It's not going to be easy for them.

"Who'd have thought an American, divorcee, Catholic would have married a Prince of the United Kingdom?"

Despite this, Burrell has no doubts about the longevity of their romance because he believes that at 36 years of age, Meghan is now aware of what she wants from life.

The former butler also drew a parallel between the American beauty and the late Princess Diana, who died in a car accident in Paris, France, in 1997.

He told ITV's 'Lorraine': "She's 36, isn't she? A mature young woman. Have you considered the fact that she's 36 years old Exactly the same age Princess Diana was when she died ...

"She's a mature young woman who knows her own mind. She knows her way forward."

Meghan's engagement ring features two diamonds from Diana's personal collection.

And Burrell believes Harry would have discussed the design of the ring with his older brother, Prince William.

He said: "William must have said to Harry, 'What would you like to give to Meghan? Something of Mummy's, because that's right and that's what Mummy would want.' And that's true. She would.

"That ring on [Meghan's] finger will always remind her of the legacy which she's married into."

Burrell also predicted Meghan will form a strong friendship with Prince William's wife, the Duchess of Cambridge.

Of the two women, he added: "I think they'll be as thick as thieves."