The 41-year-old actress took a page out of fall's minimalist book, pairing the frock with 19th-century diamond fringe pendant earrings and a cushion-cut diamond crossover ring by Fred Leighton.
Aniston completed her dual-tone look with a black croco Ferragamo maxi clutch and nude sandals by Josie and Lottie.
Though she didn't sport her infamous "Rachel" cut, the Harper's Bazaar cover girl opted for dewy makeup, which resulted in a flawless finish.
Check out StyleList's exclusive interview with Chanel's celebrity makeup artist, Angela Levin, on how she created Aniston's look.
And don't miss what Barbra Steisand had to say about the Funny Girl's impression.