Firstly, cost of delivery to the US depends on the item being sent.
The good news is that all gifts going to the US are exempt from VAT so the cost of the gift will be 21% less than the advertised price on the website. In this way, the more expensive the gift, the more you are saving on VAT.
Delivery to the US varies from about €20 to €50.
For further information: https://www.giftsdirect.com/delivery-information/