Discover the beautiful art of Diamond Cutting

Since 425 years Amsterdam has been known worldwide as the “City of Diamonds”. The brilliant for instance is a way of grinding that originates from Amsterdam and is called “the Amsterdam cut” throughout the world. If you plan a stay in the city, a visit to the historic diamond cutting factory of GASSAN Diamonds should be on your list. Get to know all facets of diamond cutting and discover its history. Learn about the different diamonds and admire the beautiful watches and jewelry from the world’s most exclusive brands. Moreover, GASSAN presents you an own unique cut: the GASSAN 121.

GASSAN Diamonds is a diamond dealer based in Amsterdam. The factory is located in the former steam-driven diamond factory on the Uilenburgergracht. In this monumental building we invite you to watch real diamond cutters at work. A guide will tell you everything about the process of the diamond cutting and grinding. The tour is free of charge. At GASSAN Diamonds you can dive into the world of diamond cutting and get a glimpse of more than 425 years of craftsmanship and tradition.

During your visit to GASSAN Diamonds you have the opportunity to see a variety of diamonds in the impressive showrooms. In the collection you will of course find the world-famous “Amsterdam Cut” and the GASSAN 121. As the only diamond dealer in the world, GASSAN Diamonds cuts stones with 121 facets. You can also choose a jewel in the Boutique which will be ready to take home after 30 minutes.  An ideal gift for yourself or a loved one at home.

If you would like to book a tour in the diamond cutting factory, we recommend to book online. This way you can be sure that an audioguide will be available in your language.

LOCATION  Nieuwe Uilenburgerstraat 173 – 175, Amsterdam
OPENING HOURS  Opened everyday from:
9.00 am – 5.00 pm


 40 minutes
✅ Suprise gift ✅ Free wifi
TICKET TYPE Printed ticket
PUBLIC TRANSPORT From Amsterdam Central Station

Metro 51, 53 of 54 Stop: Waterlooplein
From here it is a 5 minute walk to GASSAN Diamonds


Extra information

  • Tour is given in 28+ languages


  • GASSAN Diamonds is wheelchair accessible
  • Tour takes approximately 40 minutes
  • Guides in 28+ languages are available
  • Learn all about ‘the Amsterdam Cut’
  • Tour is 7 days a week and completely free

Gassan Diamonds

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