The Duchess of Cambridge, née Kate Middleton, relied heavily on maternity brand Seraphine to dress her during her two pregnancies.
And founder of the brand Cecile Reinaud, who has launched a new babywear line in a partnership with The Diana Award, has high fashion hopes for Kate's second child, Princess Charlotte.
Speaking to HELLO! Online in an exclusive interview, Cecile said that the tot is "set to become a mini fashion icon".
Kate sporting a Seraphine coat in 2014
"I was thrilled to see her first baby toddler pictures last week and to see how pretty she is. I have no doubt she will have the most exquisite wardrobe! I'm looking forward to seeing her in cute girly outfits."
Seraphine is the go-to maternity label for a slew of A-listers – Jessica Alba, Gwen Stefani, Kate Winslet and Kim Murray have all worn the brand's designs during their pregnancies.
The brand's founder has tipped Princess Charlotte to become a 'mini fashion icon'
But it is spotting the Duchess stepping out in New York wearing the Marina Maternity Coat that sticks out as a career highlight for Cecile.
"I'll never forget the moment that the Duchess of Cambridge began her first official tour of the States wearing our coat," she told us.
Hollywood aside, Seraphine is also big news in the supermodel world.
Jessica Alba has been spotted in Seraphine
"We have a bit of a history with dressing supermodels – Elle MacPherson and Claudia Schiffer were two of our first celebrity clients, and more recently we've dressed Doutzen Kroes, Coco Rocha and Karolina Kurkova," she said.
Looking ahead, there's another A-lister that Cecile would like to add to her client list: "I know that Chrissy Teigen and John Legend are expecting, and I would love to see her wearing Seraphine!"
Cecile has been busy launching her new babywear line in partnership with The Diana Award, featuring the iconic pastel Diana tartan which was created in the Princess' memory.
One of the gorgeous dresses from the collection
Speaking to us about the collaboration, Cecile revealed that the focus of the collection is baby girls' clothes – because "that's what inspires me the most".
"I am the mum of two boys so I guess I still crave playing dolls with cute baby girl clothes and designing this range felt exactly like that – it was like child's play!" she said.
"We do have a super cute romper and jacket for boys and I'm hoping we will be extending the range further for boys in the next season, but for now I have just given in to my girl inspiration and included cute accessories such as booties, bonnets and hair brands to complete the range."
As for whether we will be seeing Prince George or Princess Charlotte in the new designs, Cecile is keeping schtum. Watch this space!