green one shoulder maxi dress Bethan | WHISTLES The dress has delicate cutwork side panel detailing in our signature floral jaal Rihoas Sage Green Satin Maxi

MERSEA The Luxy Wrap in Turtledove, $228, MERSEA Going for a boho look

It had long narrow sleeves with a string of pearls as an accessory

While some details about the wedding day are certain, like the attendance of The Duke and Duchess of Cambridge, Prince Harry, Megan Markle, Prince George and Princess Charlotte (as page boy and bridesmaid) and countless members of British high society, others remain a mystery

Dresses are typically ankle-length with long sleeves and a high neckline, often worn with an apron during daily tasks

A simple black or navy dress is my usual go-to, but that feels too basic and business-y

While you want to stay away from baggy or shapeless garments, a shift dress is the one exception to the rule