Met Gala 2017 Janelle Monae

LONDON — The London-based couture house Ralph & Russo is breaking into the ready-to-wear market, and plans to hold its first show during London Fashion Week on Sept. 15.

The house, founded and run Tamara Ralph and Michael Russo, will show at 8.30 p.m. at Old Billingsgate market, the British Fashion Council said Wednesday.

“With London being a cosmopolitan hub, we couldn’t think of a better place to launch our first ready-to-wear offering,” said Russo, whose title is chief executive officer and president. “We continue to listen to the demand of our customer and the market, which will continue to fuel the expansion of the Ralph & Russo product and universe.”

REVIEW: Ralph & Russo Couture Fall 2017 >>

The brand, whose top clients include Angelina Jolie, Beyoncé, Kim Kardashian, and a host of Middle Eastern sheikhas and princesses, will continue to show its couture collection during the Paris Haute Couture Weeks in January and July.

Ralph & Russo was founded in 2007 and is known for designs ranging from the lavishly embellished to the spare and demure. In 2014, it became the first British couture house in more than a century to be invited by the Chambre Syndicale de la Haute Couture to show in Paris.

Ralph, who is the creative director, and Russo, who oversees the commercial side of the business, also remain the only Australians ever to be invited by the Chambre. Since showing in Paris the brand has also launched handbag and footwear collections.

SEE ALSO: OAMC and Rochas Homme Join France’s Chambre Syndicale >>

Caroline Rush, ceo of the BFC, said the craftsmanship behind the Ralph & Russo couture collection “is a shining example of Britain’s artisanal heritage, and I’m excited to see their debut ready-to-wear collection.”

Ralph comes from a family of couturiers and started designing and selling dresses in Australia when she was 12 years old, while Russo is an entrepreneur with a background in the music business.

SEE ALSO: London Fashion Week Switches Up September Schedule >>

“I think we want to be the next major luxury house,” Russo told WWD in an interview in 2015. “We’ve set our bars really high. Every day we get closer, every day there’s something new that we’re launching or something exciting happening,” he said.

In 2014, the independent brand took on a minority investor, John Caudwell, the British businessman and philanthropist who made his fortune with mobile phones.