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Beaded embellishments and a waist-cinching peplum by Matthew Williamson gave Kate's otherwise basic sheath plenty of fashion cred. Click through to shop her look.

To create a similar effect, start with peach or tan dress in the same silhouette.

Then add a bold enamel necklace with matching chunky cuffs.

The Duchess chose a classic tweedy suit by Rebecca Taylor for an appearance in London this morning. Click through to shop her look.

Replicate her polished outfit with a round-neck bouclé jacket and coordinating pencil skirt.

Top your skirt suit with accessories in the same color. Matchy—matchy is very chic when you totally commit.