She told Express.co.uk: “Kate’s fashion after her marriage is still of a royal in progress.”
Over the years, Kate has become known for recycling her favourite looks on various occasions.
In March this year, the mother-of-three dived deep into her closet and re-wore the Reiss ‘Olivia’ cream coat for a trip to Ireland.
She was first spotted wearing the fit and flare coat before joining the Royal Family in 2007.
Rewearing looks is something she will regularly do when stepping out.
Melita continued: “Kate isn’t afraid to rewear outfits from prior to getting married.
“Whether married or not if you like an outfit you will wear it more than once, that’s what we all do.”
While her royal style may still be progressing, Kate has managed to form a signature look for herself.
The expert claimed she has picked pieces similar to Prince William’s mother, Princess Diana, since she became a royal.
“Kate’s conservative style is more apparent now than ever before,” Melita commented.
“She also pays her respects in the form of her clothing choices that allow us to remember Princess Diana which is a very honourable thing to do by Kate.”
How did Kate Middleton become a royal?
Kate Middleton, or Catherine, Duchess of Cambridge, was born on 9 January 1982 at the Royal Berkshire Hospital, Reading, England.
She was born to Michael and Carole Middleton, a former flight dispatcher and air hostess. The couple founded a party supplies company, Party Pieces, in 1987 – now estimated to be worth £30 million.
Kate has a younger sister Pippa Matthews, 34, and a younger brother James Middleton, 31.
Kate and her family moved to Amman, Jordan, in 1984, where the future Duchess was educated at an English-speaking nursery school.
After moving back to Berkshire the family sent Kate to private school, St Andrews School. She went on to briefly study at Downe House before moving onto Marlborough College where she boarded.
For university the young Kate attended the University of St Andrews in Fife, Scotland. Here she was awarded an undergraduate MA (2:1 Hons) in history of art.
Relationship with Prince William
Kate met Prince William when they were both studying at St Andrews, and both living in St Salvator’s Hall. Famously, William reportedly took a fancy to Kate after she wore a see-through dress during a fashion show.
In 2003 the couple began dating and lived together during their second year of university.
The couple split in April 2007, however, in October they were back together.
Prince William proposed to Kate Middleton with his late mother Princess Diana’s engagement ring in October 2010. The couple were holidaying in Kenya at the time.
On 29 April 2011 they married at Westminster Abbey with a whopping 26 million watching the event live.
Kate wore an Alexander McQueen dress worth a reported £250,000 on the big day.
Kate assumed the title “Her Royal Highness The Duchess of Cambridge” and also became the Duchess of Cambridge on the day.