If you get someone to craft them for you, it's upwards of 15m for the blue, pink, and green stockings together. After you got those 3 stockings you still need to collect double the amount of ingredients for sheer stockings, so you can count on that being about 10m.
It's around 25m+ to create Sheer Stockings (I'm leaning on the + side) As I've already created the 3 stockings and have somewhat given up on my Sheer Stockings dream -_-'
It takes a while to collect all the ingredients if you don't want to overpay for your ingredients.