The official product description on brownsfashion.com reads: “With this grey Zimmermann floral print slip dress, you will look and feel like a modern day Daisy Buchanan strolling through the grounds of your own Jay Gatsby.

“The 1920s inspired silhouette is cut from a delicate floral print fabric in muted grey tone and hangs from a spaghetti strap with thin matching fabric belt and period style lace detail along the chest and hem.”

As it’s already selling out fast (that’s the Robbie effect, we guess), it’s worth knowing that the very same dress is in stock on farfetch.com and fwrd.com, too.

Then again, if you’re on the lookout for something similar (and maybe a little cheaper) the high street is there for you, too:

Here’s where to buy Margot Robbie’s beautiful bridesmaid dress