Prince Harry and Meghan Markle
What's the best hairstyle for Meghan Markle's face shape? Pictured: Markle meets school children in the Dean's yard before attending a Reception after attending the Commonwealth Service at Westminster Abbey on March 12, 2018 in London. Getty Images/Jack Hill

Meghan Markle's hairstyle for her wedding is just one of the many details that royal followers are watching out for and will likely imitate after her nuptials.

While there is still no confirmation as to who will design Markle's wedding or style her for the big day, some have speculated on the perfect hairstyle for the future royal. A salon expert recently said that a bride's hairstyle will also depend on the design of her wedding gown.

"The bride's hairstyle will also certainly depend on the dress and neckline," Matthew Soobroy, principle stylist at Charles Worthington Salons, said. "I think that Meghan's dress will be cool and effortless with a twist of classic, romantic yet fashion."

Aside from the bridal gown's design, Soobroy added that the shape of one's face also matters when it comes to choosing a hairstyle. He suggested the best way Markle's hair should be styled on her big day.

"Meghan has a heart-shaped face so she suits most hairstyles and fashion trends," he said. "I think she will look beautiful with hair that is left down with waves and super sleek. With either a middle or a side parting, by pinning one side back off the face, it will lift the look and create slight drama. A side-part and waves bring movement around the face which will help heart-shaped faces like Meghan appear more in proportion."

Soobroy also praised Kate Middleton's half-up, half-down hairstyle during her wedding in 2011. According to him, the Duchess of Cambridge's choice is a "style that is timeless and that many women choose for their wedding day."

To have the best hairstyle, Soobroy suggested that one has to pay attention to the volume of the roots as it corrects proportions and will make the face look longer. He also advised against having a straight hairstyle and excessive volume along the sides as the level of cheekbones and jaw will broaden the face.

On the other hand, Drybar founder Alli Webb also gave her predictions regarding Markle's hairstyle on her royal wedding. "She has naturally curly hair and she likes a smooth blow-out with soft waves, as we've seen," Webb said. "My prediction is she'll do soft waves, hair half-up with some curls, very soft and pretty."

Prince Harry and Markle will tie the knot on May 19 at St. George Chapel at Windsor Castle. The ceremony will begin at 12 p.m. UK time (7 a.m. EST). After that, the newlyweds will depart from the castle for a carriage ride procession.