Charlotte’s "blue for a boy" Periwinkle dress, with Peter Pan collar and sash, was by Little Alice London. Picture: AP

London - At the age of two, it seems Princess Charlotte already has a level of fashion influence to rival her mother.

The toddler, who stole the show with her appearance at the Lindo Wing on Monday, was wearing a £45 (about R750) floral smocked dress, which immediately sold out online.

The Duchess of Cambridge’s wardrobe choices usually fly off the shelves moments after she wears them too – dubbed the "Kate effect".

READ: How Princess Charlotte almost stole the show

Charlotte’s "blue for a boy" Periwinkle dress, with Peter Pan collar and sash, was by Little Alice London. 

The brand is owned by Alice Avenel. She is a close friend of the duchess and the pair both attended Marlborough College.