Turquoise/teal Prom Dress

Gorgeous teal like color strapless dress with very shiny, intricate beading work. Was bought about 2 years ago for prom, has only been used once, then hung and stored. Bust area is big and will most likely need alterations. Hemmed to floor length for a 5'4 girl, was listed around size 16, but dress sizes vary, I wear size 10-12 jeans for comparison(and can give measurements if it'll help). Was over $300 brand new, asking $200 but open to offers.