Yes, it is possible to take gold and precious metals with you on flights abroad, but it is important to prepare well for this. Firstly, at customs in the Netherlands, and secondly at the customs of the country of destination.
For customs in the Netherlands, the procedure is quite simple. At the airport, you can go to the customs desk to declare what you are going to take with you. Make sure you also have the proof of purchase of the precious metal with you. The required form is also available online at the Website of the Tax and Customs Administration.
Please note that import duties and taxes may apply in the destination country, and that sometimes there are limits on the value to be imported. Therefore, always contact the appropriate authorities in the relevant country. On this website you will find an overview of customs services per country within the EU.
If you have any further questions, we recommend that you contact the customs of the Netherlands and the relevant country of destination.