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Gassan Diamonds

Experience the sparkling of diamonds!

Gassan Diamonds offers free diamond tours in their impressive building.

Amsterdam is the City of Diamonds for over 400 years. The 'brilliant' is a Dutch way of grinding, also called 'the Amsterdam cut', and is known all over the world. If you want to know everything about the history of this handcraft, the carats, colours, brightness and cuts, you have to visit Gassan Diamonds!

Gassan Diamonds is situated in an impressive monumental building that was opened in as a steam driven diamond cutting factory in 1880. Nowadays, you can see the diamond cutters at work while an experienced guide explains about the process. You will see loose, smooth diamonds in an extensive jewellery collection. After the tour you are more than welcome to have a free drink in the coffee store.

The Gassan building was described as a modern miracle of technical ingenuity. Every week an average of 8 to 10,000 carat of rough diamond was cut. The company outgrew its premises and was the largest of its kind in Europe: customers came from far to purchase cut diamonds. In 1989 Gassan Diamonds reopened the historical steam driven factory and brought the diamonds back to its original location, to continued the tradition and craftmanship of diamonds polishing in Amsterdam.

Opening Times

Open daily: 9am-5pm.
Nieuwe Uilenburgerstraat 173,1011 LN Amsterdam