Birthday Dresses: Area Crystal Buckle One Shoulder Dress If you're in the mood to splurge, this Area Crystal Buckle One Shoulder Dress ($650) should be at the top of your list. The belted accents and cutouts are like built-in accessories, so you don't need much to complete the look. A pair of black strappy heels and a silver bag will do the trick. Image Source: shopbop.com Area Crystal Buckle One Shoulder Dress $650 from shopbop.com Buy Now