Netherlands 2013 King William Alexander II Silver & Diamond Stamp MNH. This Stamp is Made From. 999 Silver With a 1.2 mm Rose Cut Diamond Attached, Supplied by Gassan the Famous Dutch Diamond. It is the First in a Series of 9 Personalised Stamps designed in 3D Relief Paying Tribute to the Reigning Monarchs Of Europe.It is Issued by PostNL in Conjunction With the Royal Dutch Mint Only a 1000 Stamps Were Issued. Will be packaged Securely Protected with Cardboard.