That is seriously haram. It’s not even about having the money to buy a dress that expensive, because i’m sure there are plenty of desi’s around the world who can afford that, but it’s haram because there are families who can’t get their daughters married because they can’t afford the dowry, and the figures are ridiculousy small (relatively speaking). For someone to buy a $ 12, 000 outfit, that’s horrible…considering you haven’t even added the cost of jewelry!