Beyonce Instagrammed THIS photo.
Her dress is the Altuzarra Constantina Checked Silk Dress. Buy it here: MYTHERESA
This dress is also available in a pink and orange plaid here: MYTHERESA, NET-A-PORTER, FORWARD, and FARFETCH
Her sunglasses are the Andy Wolf Blair Sunglasses. Buy them here: ANDY WOLF and MATCHES FASHION
Her bag is the L'Afshar Ida Bag. Buy it here: SELFRIDGES & CO