Giambattista Valli offered a double unveiling on Monday night in Paris: His fall 2023 haute couture collection — and his spanking new headquarters, a stone’s throw from the Opéra Garnier.
Guests were sprawled across several salons, the chairs hugging the walls and leaving loads of carpet space for his lavish tulle ball gowns, which were of reasonable proportions this time.
“We wanted to do the show in the space that is…