Spotted: Blair Waldorf heading to a party at The Empire with this aquamarine-blue silk-blend u-neck fitted midi dress from Dolce & Gabbana and with no hair accessory. We can let it go, this time. The dress really is everything she needs. You know you love it. XoXo. Featuring a U neck, short sleeves, an invisible back zip fastening, a rear central vent, a fitted silhouette and a mid-length.