Dress: Belted Wool Blend Dress by Oscar de la Renta (exact color online, Thanks Sarah!)
Donna Paulsen (played by Sarah Rafferty) on Suits on USA was spotted wearing this blue split sleeve dress on Suits on episode 'Prisoner's Dilemma' (9x08) in Sep 2019. Donna's Dress is the Belted Wool Blend Dress by Oscar de la Renta .