This dress is a few years old now from Marks Work Wearhouse, but it is possibly one of the best purchases I have ever made in my life. It fits like a dream, has ruching at the waist, a classic v-neck shape, wide straps/shoulders so I can wear a decent bra and a length that's classic and always in style.
Blazer - Suzy Shier: same / similar
Dress - Mark's Work Wearhouse: similar / similar / similar
Shoes - Walmart: similar / similar / similar