Val Stefani dress, size 12, purple/ periwinkle/ lilac/ blue, OBO

This dress I wore for prom last year, and we bought it brand new. The beading and detailing is stunning, especially when the sun hits it. I did take about an inch off of each strap for it to fit smoothly on my back. For reference, I’m 5’8 and wore 3 inch heels and it still went to the floor. There are no stains, tears, or sign of wear. This totaled to over $800 when we bought it, but I am willing to negotiate my listing price. Please comment if interested!