Meghan Markle
Designers struggle to keep up with the demands of the Meghan Markle Effect. Pictured: Markle visits Nottingham Contemporary on Dec. 1, 2017 in Nottingham, England. Getty Images/Christopher Furlong

The Meghan Markle Effect is already making waves.

The "Suits" star's style caught attention when she started dating Prince Harry, and her influence, now dubbed as the Meghan Effect, has only grown when they got engaged. The designer labels responsible for the clothes and accessories that she has worn recently revealed they are working round-the-clock to keep up with the demands caused by the Meghan Effect.

"The interest in the brand has been incredible," Strathberry spokesperson Leeanne Hundleby told People. "The phones began ringing constantly and our visitor numbers on our website were up by around 5000 percent!"

The rep added that Prince Harry's fiancée has given their brand a lot of publicity. "It felt pretty amazing that thanks to Meghan carrying our design, people all over the world were becoming aware of Strathberry," Hundleby continued.

The spokesperson revealed that they have 3,000 customers on their waiting list at the moment who signed up and wished to be notified when Markle's bag will be available and in stock. The bag that many are going crazy for is the Strathberry Midi Tote that the "Horrible Bosses" star carried when she made her royal debut in Nottingham. The bag is priced at $675 and is available in a variety of colors including burgundy, navy and vanilla.

LINE The Label is also experiencing the same after the "Dater's Handbook" star wore their white wrap-style coat for their official engagement photo call on Nov. 27. The $750 double-faced wool coat "was gone in seconds."

"We are now dealing with the aftermath because everyone is trying to get it, but I don't want 10,000 white coats out there – it has to stay exclusive," said John Muscat, president and co-founder of the brand.

The Meghan Effect started when Markle and Prince Harry made their first public appearance as a couple at the 2017 Invictus Games in Toronto in September. During the event, Markle wore a white button-down shirt, ripped jeans and flat footwear with a tote. After her photos appeared online, the whole ensemble was sold out in hours.

Markle's influence in fashion has been compared to that of Kate Middleton, with many agreeing that the Meghan Effect is as potent as the Duchess of Cambridge's Kate Effect.

Meanwhile, Misha Nonoo, a New York-based designer who is believed to be Prince Harry and Markle's matchmaker, created the actress' white-button down shirt, more popularly known as the "husband shirt." She admitted that she did not expect Markle to wear one of her designs and added that she was thankful that the actress did. "I had no idea [Markle] was going to wear it," Nonoo said. "It was a beautiful surprise and I was touched. The exposure has been incredible."