big-name designer

Translations
известный дизайнер
She wore a dress by a big-name designer to the gala.
Она носила платье от известного дизайнера на гала-вечере.
Definitions
A 'big-name designer' refers to a well-known, highly respected, and often influential individual in the fashion or design industry whose name is widely recognized and associated with high-quality or prestigious work.