Jean Yu

Known for: The softest silk made-to-measure lingerie (she's at work on slips to match every flesh tone) and fancy silk dresses that are incredibly feminine, with subtle Deco touches.

What to buy: Invest in a handmade, bias-cut dress. The frocks are dressy, precious, and likely to be in your closet forever ($1,100$1,800).

Where to buy it: 3 7=1 (37 Crosby Street; 212-226-0067).

Pictured: Peach silk dress with chiffon insets ($1,180)

Photograph by Andrew McCaul.