I've tried on dozens of other plunging v-neck dresses after this one and nothing else even came close. This Berta dress has the most complementing silhouette and it elongates your neck so you look taller even when you're only 5'0 like me.
I bought this dress at L'Fay Bridal in New York. Ordered the smallest size Berta made (size 36) but the dress was still big on me so I had it altered to fit my measurements (B30/W24/H34, I'm 5'0 on 6" heels). The seamstress left all the fabric intact, didn't cut anything off so it can be altered again to fit someone up to around size 4. The dress was hemmed but the extra fabric wasn't trimmed off so it can be let out to fit any height. The dress comes with pockets so you can carry around your phone and also lift the dress up when you walk around. A bustle button is added under the back zipper. Totally invisible when the button is not in use. Willing to do video calls to see the dress or check out this Youtube video: