character in blue dress Disney Princesses and their iconic blue dresses

Another option would be to check with your tailor and see if she can sew a bra into the bodice of the gown, so you can get built-in support without worrying about straps or anything falling

Originally from HM Divided

Full-Length Hem: The skirt extends to the floor, providing a long, unbroken line that enhances the wearer's height and profile

The AKIRA Label Fancy And Fun Rhinestone Mini Dress In Black is crafted from a sleek, structured knit base fabrication and features glistening tonal rhinestone embellishments throughout, a strapless neckline, a curve-hugging silhouette, a mini length, and a tonal back zipper closure