When King Charles III addressed the nation for the first time, he announced a new Prince and Princess of Wales.
MORE: 5 rare childhood photos of Duchess Kate – from toddler to teen!
Heir-to-the-throne Prince William and his wife Kate have inherited the titles made famous by his father and mother, Princess Diana.
WATCH: Prince Charles and Princess Diana leave St Paul's Cathedral after their wedding
The royal couple have now changed their social media handles to read @princeandprincessofwales as they take on their new, more prominent roles.
READ: Duchess Kate's surprising university hobby proves she's just like the rest of us
MORE: How Lady Louise Windsor is following in Duchess Kate's footsteps
Of course, with Kate’s new title will come comparisons with William's late mother, Diana. She was the last Princess of Wales – and much has been made of the similarities between the two ladies.
Much has been made of the similarities between Kate and Diana
Kate already proudly wears the engagement ring worn by Princess Diana – but there is one statement piece of jewellery that she will not inherit.
READ: Kate Middleton has 'banned' this word for Prince George, Charlotte & Louis
MORE: Prince Louis completely steals the show in sassy school video!
When Diana walked down the aisle to marry Prince Charles at St Paul’s Cathedral in July 1981, she wore the most spectacular tiara to secure her 140-metre David and Elizabeth Emanuel-designed tulle veil.
The Princess wears her late mother-in-law's engagement ring
And the 19-year-old observed age-old tiara etiquette by not borrowing from the royal vault. Instead, she chose to wear the Spencer tiara.
READ: What Prince George and Princess Charlotte are called at school
MORE: Where the royals were educated - from Kate Middleton & Meghan Markle to the Queen
The glittering headpiece is designed in a garland style and features a central heart flanked by continuous running scrolls, interspersed with star and trumpet-shaped flowers. It is set throughout with circular and rose-cut, cushion, and pear-shaped diamonds, mounted in gold.
Diana wore the Spencer tiara on her wedding day - and on many occasions thereafter
The tiara was inherited by Diana’s father John Spencer, 8th Earl Spencer in the mid seventies and, as such, remains in the Spencer family.
But while Kate may not inherit the famous diadem, it seems it will one day be given to her daughter, Princess Charlotte.
READ: Prince William and Duchess Kate's surprising morning routine with three children revealed
MORE: William & Kate's school night dinners for their children are so wholesome
Earlier this year, the Spencer tiara went on display at an exhibition in London with the catalogue stating that Princess Diana's eldest granddaughter would one day own the exquisite piece.
Princess Charlotte is set to inherit the famous headpiece
It read, in part: "In the mid-1970s, John Spencer, the 8th Earl Spencer, inherited the tiara. It was subsequently worn by all three of his daughters at their wedding: Lady Jane in 1978; Lady Sarah in 1980; and finally Lady Diana the following year, in 1981.
“The tiara was most recently worn by Celia McCorquodale - niece of the 10th Earl Spencer Charles - at her wedding in the Spring of 2018. The Spencer Tiara is now set to be inherited by Princess Charlotte."
Make sure you never miss a ROYAL story! Sign up to our newsletter to get all of our celebrity and royal news delivered directly to your inbox.
