The 4 Must-Have Pieces for Fall

The Gray Dress: Evening

Powerful by day, seductive by night, this sleeveless stretch crepe dress (Jones New York, $150) is the perfect office-to-dinner piece. Go to work wearing a jacket for coverage; take it off when the day ends, showcasing a richly beaded neckline. Switching to accessories with a little glitter doesn't hurt, either—even the tights are shimmery (DKNY Hosiery). 

Earrings, House of Lavande. Ring, Alexis Bittar. Clutch, Judith Leiber. Shoes, Jimmy Choo.