Princess Beatrice is engaged, but what do jewellery experts think of her ring?

Just in case you were worried when the next royal wedding would be, Princess Beatrice has announced her engagement to millionaire property tycoon Edoardo Mapelli Mozzi.

Beatrice's sister Princess Eugenie posted the news on Instagram, with a statement from the couple, saying: "We are extremely happy to be able to share the news of our recent engagement. We are both so excited to be embarking on this life adventure together and can't wait to actually be married. We share so many similar interests and values and we know that this will stand us in great stead for the years ahead, full of love and happiness."

Giving the fans what they want, Eugenie has also posted an up-close look at Beatrice's engagement ring.

So what do experts think of the rock?

Tobias Kormind, managing director of 77Diamonds.com, says: "Princess Beatrice's ring is a beautiful 3.5 carat round diamond, of medium quality, set in an art deco design, with tapered baguettes on each side of the centre side. I would value this ring at £60,000."

He compares the ring to other royal rocks: "Unlike Kate and Eugenie, who were given coloured gemstones, Edoardo has gone for a more modern engagement ring with a diamond, like Harry for Meghan.

"But while Meghan was given a cushion cut diamond, an older but more trendy diamond shape, Beatrice has been given the most popular and brightest diamond, a round, accompanied by a pair of tapered baguettes, which creates a very art deco look. This is very on trend as we are coming up to the 100 year anniversary of art deco – and it is set to be the trend for 2020."

The ring is made by British jewellery house Shaun Leane, and on its Instagram page it says: "The platinum and diamond engagement ring is a fusion of Victorian and art deco designs and is accompanied by two additional matching bands."

Arabel Lebrusan, founder of Lebrusan Studio and co-founder of The Vintage Ring Company, says: "We are very excited to hear the ring has been sourced ethically, bringing an even more beautiful story to the perfect engagement." She adds: "Following on from the revival of quintessential art deco style, this ring is a wonderful example of how to capture that era and include a personal and modern twist."

Even though there are differences between Beatrice and the Duchess of Sussex's rings, it does come from a long-standing tradition of royal jewellery: Large circular diamonds as a centrepiece, with smaller diamonds either side. Even the Queen's engagement ring follows this pattern.

Beatrice's big day will be the fourth royal wedding in recent years, following the Duke and Duchess of Sussex's and then Eugenie's in 2018, and Prince and Princess Michael of Kent's daughter Lady Gabriella Windsor's to Tom Kingston in May this year.

All three took place in St George's Chapel at Windsor Castle, so it's thought Beatrice's wedding will be at the same venue.