Visit Gassan Diamonds for free

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Free Gassan Diamonds Tour

During the Hop on – Hop off tour you’ll get the chance to hop off at Gassan Diamonds. Here you can join a completely free tour of Gassan Diamonds Amsterdam. This diamond factory will give you a good idea of diamonds in Amsterdam and their history in the city. During the tour, you will discover all facets of diamond grinding and cutting, including the Amsterdam Cut and Gassans own unique cut: the Gassan 121. See how a rough diamond is cut into a shining gem, learn about the different qualities of diamonds and see how you determine the value of a diamond. You’ll be able to admire and buy beautiful watches and jewelry from Amsterdam and all over the world at the end of the tour.

Diamond Factory Amsterdam

Right after World War II, in October 1945 Samuel Gassan started the factory in the city center of Amsterdam. His company was a wholesaler and retailer in one. Importing and exporting rough and cut diamonds. Because of the growth of the company they moved around in Amsterdam quite a lot. Now, Gassan Amsterdam is established at the Nieuwe Uilenburgstraat in Amsterdam. The building was a former steam-powered diamond grinding factory. Behind the building is a quay for the Hop on – Hop off boats (green line, stop 3) and in front of the building is a bus stop (stop 4) for the Hop on – Hop off buses.

Enjoy the tour

Amsterdam has been known as the city of diamonds for over 435 years. See the history with your own eyes and learn more about this Amsterdam diamond factory during this unique tour. The tour is available in more than 28 languages. Every day of the week between 09.00 and 17.00 tours will take place starting at the entrance of the factory. The tour will take 40 minutes and is completely free. Don’t miss out on this fantastic opportunity!

  • Zie alle hoogtepunten van Amsterdam
  • Ticket geldig voor 24/48 uur.
  • Audiogids in 18 talen
  • Panoramisch dak voor het beste zicht
  • Gratis wifi beschikbaar op alle bussen en boten
  • Gratis mobiele app beschikbaar
  • Gratis stadsplattegrond inbegrepen
  • Kortingskaarten voor musea en attracties beschikbaar


City Sightseeing Amsterdam bespaart je tijd en geld tijdens je verblijf in Amsterdam. Kies tussen een 24- of 48-uurs ticket en bekijk de hoogtepunten van Amsterdam. Je kunt bij elke stop van de bussen en boten in- en uitstappen. De GPS-audiogids aan boord is beschikbaar in 18 talen en gratis WiFi is inbegrepen bij alle bussen en boten. Download de gratis app en krijg een live-weergave van wat de routes van de bussen en boten zijn, zodat je wachttijden tot een minimum kunt beperken. Koop nu je tickets en geniet ten volle van je vakantie in Amsterdam!


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