One True Thing: The Little Black Dress

The Want: The perfect L.B.D.—not too long, not too short—that'll take you from a 9 a.m. meeting to a chichi client dinner. It should be demure, dress-up-able, and can't break the bank.

The Get: Boden's Pleat Detail Wool Dress ($188, bodenusa.com). This structured black shift dress from British retailer Boden hits all the right sartorial notes. It's wool and lined, which maximizes warmth and minimizes the see-through factor. The cap sleeves are also universally flattering. Even with a cardigan or blazer thrown over it, the pleat detail at the neckline dresses it up just enough.

Ring Leader

Eye-catching cocktail bling to suit any style

Minimalist

Add a touch of subdued shine with Gorjana's hammered 18-carat gold Chloe ring, which looks much more expensive than it is. Wear it with no other jewelry and you'll still stand out. $95, gorjana.com

Vintage Fake-Out

Exude a deco vibe with this gold, enamel, and peridot Dragon Scale ring from Kara by Kara Ross. Everyone will think you scored it at a Palm Springs flea market. $190, kararossny.com

Trendsetter

The leather cutouts and richly hued stones make this Multicolored Cluster ring a scene stealer. Go figure: It's from Hollywood starlet Nicole Richie's House of Harlow jewelry line. $110, charmandchain.com

Romantic

This Serpent ring from Ann Taylor (ANN) has a "borrowed from your (very chic) grandmother's jewelry box" quality that goes well with all outfits, especially dresses and billowy blouses. $58, anntaylor.com

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