Her jackets and jeans, bangles and bags can instantly send tongues wagging and designers’ sales soaring.

Since being catapulted into the global spotlight as Prince Harry’s girlfriend in 2016, Meghan’s outfits have been scrutinised and copied, often crashing websites selling her apparel.

Fashion blogs and social media accounts dedicated to the American’s style have mushroomed, just as they sprang up for her sister-in-law Kate, Prince William’s wife, allowing followers to comment on her latest sleek looks usually in a monochrome palette.

Designer dresses, luxury handbags and stylish stilettos are the fashion dream of many women, but for a young royal they are the staple of an everyday wardrobe.

For her busy royal diary, the now Duchess of Sussex usually wears expensive labels, namely French couture house Givenchy whose British artistic director Clare Waight Keller designed Meghan’s wedding dress.

Dior, Ralph Lauren, Carolina Herrera and Oscar de la Renta are among other formal and evening wear go-to brands.

“Meghan’s wardrobe is really unique because there are so many bespoke pieces in it and we will really never know how much those cost,” Ross said.

She estimates her wardrobe at about $657 750 a year.

While becoming a trendsetter, Meghan, named 2018’s best dressed woman by People magazine, has stayed loyal to smaller brands she wore before her global fame.

The 37-year-old, who used to film drama “Suits” in Toronto, has worn Canadian labels Mackage, Aritzia and Line the Label.

For casual wear, she has worn J.Crew and brands known for their environmental and social credentials: a Reformation dress, Veja sneakers, Outland Denim jeans and jewellery made from recycled metal.

Her more affordable accessories are snapped up by consumers.

Christine Ross, co-editorial director of Meghan’s Mirror fashion blog said Meghan’s casual jean looks proved popular with readers. Her maternity wear as she awaits her first child is also eagerly followed.

Royal fashion expert Michael Talboys said he hoped to see Meghan wear more British labels. She has worn items from UK brands Victoria Beckham, Strathberry, Marks & Spencer and her second wedding gown was a halterneck dress by Stella McCartney.

On the streets of London, student Savanah Edwards said Meghan’s “classic” style was having an impact.