The 85,000-square-foot (7,900-square-metre) store invited customers through its doors for the first time last week.
Found director Richard Found worked with the Saks team to create a visual language that runs throughout the different departments.
"The design combines an impressive spatial arrangement, crisp detailing and understated palette with a series of dramatic elements, all referencing the brand's heritage and reflecting its unique location," said Found.
In the centre sits a two-storey cylindrical tower finished in white plaster, which houses the escalators.
Rings of cove lighting in the ceiling emanate concentrically from the drum-shaped structure, while curved display cases and counters also follow the same lines.
Around the outside, radiating brass fins form a "veil" and act as a secondary store front.
The metal is also used for clothing rails and display units inside, amid a muted colour scheme of creams and beiges.
Level one houses beauty, jewellery, designer and handbag departments, while apothecary and fragrance brands run around the perimeter within recesses finished in grey polished plaster.
On level two, a 70-foot-long (21-metre) mirrored sunglasses display leads customers to the shoe department.
"Saks have considered many touches to make the experience more fluid and appealing for the customer," said Found.
"We have ensured that the architecture and design reflects the need to create a truly interactive and immersive retail experience."
Found has worked on a variety of high-end interior projects, with clients including Selfridges, DKNY, Harrods and Givenchy.
Other studios that have recently completed department store interiors include Nendo, which designed a new retail space in Bangkok, and OMA – which worked on the restoration and transformation of a Venetian palazzo.
Photography is by Jason Schmidt.