Dress I bought for my sister's wedding and wore only once for a few hours

Dress I bought for my sister's wedding, wore it for only about 6 hours. Size (10), feels like it fits large and medium. Tightened at the chest by half (can be undone normally). And the fabric above is stretchy. Amazing, incredible, stunning, absolutely gorgeous when worn, but since I don't have upcoming events soon, it's a shame for such an elegant and luxurious dress to stay in the drawer. I bought it for 950. Serious buyers can contact me