A wire transfer would be your best bet. Safe. Fixed price (regardless of how much amount you transfer) and its secure. Both parties can be confident of the success of the transaction if you use your bank. As Rob Rawson pointed out - its not a big deal. The only time you would really need to consider an outside company to do this transaction is if the transaction is being converted from US Dollars to some other currency, in which case you have to be cognisant of the exchange rate you would be getting. In such cases an FX broker may be able to beat the banks' standard FX conversion rate.
What is an efficient method for sending or receiving over $100,000 online in a single transfer?
Can the source and destination of a wire transfer be tracked by third parties?1 ansWhat happens if a wire transfer is sent to a bank account that does not exist?1 ansWhy do interbank transfers take longer than transfers within the same bank?1 ansCan wire transfers be lost, and what causes this?1 ans