Kate Middleton’s Royal Baby Portrait Dress: Is A Huge Hit [Photos/Videos]

The style icon's latest brand of choice is Seraphine. Kate Middleton chose to wear its Jolene Dress in the first official portrait of Prince George. The dress worn by Kate Middleton in her official portrait with the royal baby and Prince William sold out within 2 hours of the release of the family portrait.

Certainly, Kate Middleton has become a style icon. We see the pieces she wears, whether high street or designer, selling out in a matter of minutes. Kate has always been elegant and respectable. She quickly transitioned from free-flowing tea dresses with structured blazers to floor-length gowns and coat dresses.

Kate Middleton's style is not only age and occasion appropriate but also classic and graceful. It can't be easy to be constantly judged by the masses, try to justify the in-laws and still stay true to her individual style. She is an exceptional role model when it comes to dressing like a lady, and we think she definitely deserve the plaudits.

The fuchsia frock, which features a flattering knot front and a deep V-neck (for breastfeeding, possibly?), retails for $79 on Seraphine's site, but you'll have to wait until September 16 to purchase your own -- that's right, it's already sold out.

"The Kate effect is huge and we have been enjoying a 400% growth in sales since it became public that Kate bought Seraphine dresses back in April 2013," Cecile Reinaud, the founder of Seraphine, told Hello!.

"A few weeks ago she was photographed wearing our Renata Spotty dress whilst shopping on King's Road and our sales boomed immediately with the dress completely selling out," she added.

"We heard rumors online that an official royal family photo was going to be released imminently, so we were on the look out to see what her next outfit would be and hoped it would be Seraphine," Ms Reinaud said as quoted in ABC News. "We saw the picture go live online overnight and are absolutely honored and so happy to see her in another one of our dresses!," she added.

The Kate Effect has been in full swing since the birth of the Prince George in July, with the floral printed Seraphine dress Kate wore en route to Bucklebury selling out immediately as well. The Jenny Packham polka-dotted dress she wore outside of the hospital also become very famous.

Seraphine was definitely doing its best: On its site, the duchess' three dresses are inscribed with the label "Worn By Kate Middleton."

Seraphine is giving its customers the best of what they want. Watch out Kate Middleton's Seraphine ensemble in the exquisite Royal Baby Portrait and many more in slideshow above.

What do you think of Kate Middleton's style?