royal blue white dress Mermaid Prom Dresses Lace Applique with Spaghetti Straps Royal Blue / US2 This captivating dress has a sweetheart neckline Final Sale Plus Size Dress

The one drawback is that it needs a belt to give it some shape, but considering it is on sale for almost $50 (if you find a code), that is a small price to pay

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In one photo, she could be seen in a black leather miniskirt and black top with an oversized black leather coat

Below, ELLE got a first look at new interviews with the designers behind Dianas most memorable gownsand an exclusive glimpse of never-before-seen sketches of those looks

The V neckline is modest and elongating, while the midi hem keeps things appropriately formal without feeling stuffy