Kimchi blue long ivory backless embroidered dress, wedding, beach, photo shoot

This is a gorgeous dress. It is backless except for two crossing straps, with a flat neckline that emphasizes the collar. Looks and feels like a wedding dress. Heavy and lined to be non transparent (the top layer is sheer with slightly shiny embroidery, like satin). Waist is 25 inches, hits at the bottom of the rib cage. Skirt from waist seam is 44 1/4 in long. Never worn, except to try. Machine embroidery is loose/lifted at some sections but can easily be hand finished. I got for a gift at a boutique; I don’t know what brand this is. The lining is thick (but stretchy) and the top layer is very pretty. Offers are welcome!