lavender long sleeve dress Charming Mermaid High Neck Beading Prom Dresses With Long Sleeves The bodice of the gown has a semi Long A Line Beaded Sequin

The dress needs to be a floor-length evening gown, and it should be a tasteful colorstay away from patterns or anything too bold

Fall mother-of-the-bride dresses with long sleeves, three-quarter sleeves and flutter sleeves are great options, but strapless and sleeveless styles aren't completely out of the question

The duchess clearly loves a good polka dot print, and she knows how to make the pattern work for any occasion

Size range: Custom Prices from: $1,620 How to shop: Wear Your Love's gowns are available to order online, with the ability to customize your size along with other details of the dress

Leave it to the queen of dress designs, Diane Von Furstenberg, to take our breathe away with the Lily Silk-Viscose Voile Maxi Dress ($458 on dvf.com)