NWT Milanoo dark blue ball gown with train - size 6/8

New with tags - Milanoo dark blue ball gown with train. Sleeveless, high neck, high back. Fully lined. There is no size tag in the dress but based on how it (doesn’t) fit me (I’m a size 10), I’m guessing that it is a size 6 or a small size 8. I’m happy to provide measurements, if needed.