Julianne Hough, Shimmi
Credit: Flynet; Courtesy of Net-a-Porter

Julianne Hough enjoyed some beach time with boyfriend Ryan Seacrest in Miami this weekend, and we have the designer details on her blue and white bikini—it's by Shimmi! Hough worked a triangle top by the brand, but a similar bandeau style is currently available at for $185. For more celebrity swimwear style, click through the gallery!