For unparalleled after-hours glamour, turn to Marchesa's chic diffusion line Notte by Marchesa. This vibrant cobalt-blue cocktail dress is one of our favorite pieces for evening - with structured shoulders and a pleated peplum waist, it's guaranteed to make an impact.

• Cobalt silk-satin
• Pleated collar and peplum waist, gathered silk-chiffon waistband, fully lined
• Concealed hook and zip fastening at back
• 100% silk
• Dry clean
• Fits true to size.Take your normal size
• Semi-fitted design
• Mannequin height is 180cm/ 5'11" and is wearing a US 4