Nordstrom Prom/Formal Dress

Only worn once. My favorite prom dress by far. No flaws would just need to be steamed to get wrinkles out again. Off the shoulder. Size 8. No alterations. I paid $500 for this from Nordstrom and only worn once so would like to get a good price for it. Will negotiate. Simple but elegant. 100% polyester as shown in tag. No flaws. Will post more pics if needed.First picture is me in the dress, I am 5’6 around 145 pounds.