black formal one shoulder dress Sarin Mathews Womens Long Sexy Summer Sleeveless Bodycon Ruched Wrap Split Cocktail Dresses XS : Clothing, Shoes & Jewelry Black and White Color Floor length Size:10 (PREORDER SHIPS IN APPROX 6-8 WEEKS) bridesmaid dresses option set as picture

black formal one shoulder dress Sarin Mathews Womens Long Sexy Summer Sleeveless Bodycon Ruched Wrap Split Cocktail Dresses XS : Clothing, Shoes & Jewelry Black and White Color Floor length Size:10 (PREORDER SHIPS IN APPROX 6-8 WEEKS) bridesmaid dresses option set as picture

Black and White Color Block Loose Maxi Dress With Pockets and Short Sleeves, Minimalist Oversized Shift Dress for Women, Sizes XS-4XL - Etsy

There's a lot of options out there, but George Cleverly's are in a league of their own

bridesmaid dresses option set as picture

Size:10 (PREORDER SHIPS IN APPROX 6-8 WEEKS)

Unimpeachably traditional, undeniably formal, but absolutely with that je ne sais quoi that I think you’re reaching towards with “creative black tie”

Floor length