For all of your concern, the price will be at available in such wide price range-- thousand baht something up to almost 20,000 for a single extraordinary piece. So check it out before the queue upsets you because the one that you want is exceeding your budget.
Check the full Thai Baht prices here
Available on 5 Nov 2015
H&M Store: Siam Paragon, Central World and Central Festival Pattaya