Is this from an experienced seller? Maybe they quoted something not really having an idea much it costs, without knowing the actual weight of the item. Some inexperienced sellers use the services of a shipping store which does cost a lot more to use, paying retail and extra for everything (boxes, chips, even the postage costs more!).
Shipping a small (under one cubic foot) 3lb item from the USA to Asia via USPS Express I think hovers between $35 to $40, but then go up from there with added insurance. The price of Priority Mail from the US to Asia is almost as high as Express, not worth sending Priority which you cannot track.
eMail the seller again for an actual quote explaining the above see if they can give you a realistic estimate or ask them to explain why the shipping costs are so high.