Discover the beautiful art of Diamond Sharpening

Amsterdam has been known worldwide for 425 years as the “City of Diamonds”. For example, the brilliant is an Amsterdam cut that is called “the Amsterdam cut” throughout the world. If you visit Amsterdam, a visit to the historic diamond cutting factory of GASSAN Diamonds cannot be missed. Get to know all facets of diamond cutting and discover the history of the diamond. Learn about the different diamonds and admire the beautiful watches and jewelry from the world’s most exclusive brands. Moreover, we present you our own unique, beautiful cut shape: the GASSAN 121. Be enchanted by GASSAN Diamonds!

GASSAN Diamonds is an Amsterdam diamond dealer, located in the former steam-driven diamond factory on the Uilenburgergracht. In this monumental building we would like to let you look over the shoulders of our diamond cutters. A guide will provide you with an explanation of the diamond’s processing process. The free tour of the grindery is a unique experience. At GASSAN Diamonds you experience the sensation of diamond cutting and you can taste more than 425 years of craftsmanship and tradition.

During your visit to GASSAN Diamonds you have the opportunity to view a variety of diamonds from our impressive range in our showrooms. In the range you will of course find the world-famous “Amsterdam Cut” and our own cut shape: the GASSAN 121. As the only diamond dealer in the world, we cut diamonds with 121 facets. Of course you can choose a jewel in our Boutique that our goldsmiths can put for you within 30 minutes: ideal as a gift for yourself or someone you love.

If you would like to book a tour of our diamond cutting factory, we recommend you book online. This way you can be sure that a guide is available in your language at the time you want to guide you during the tour.

LOCATION  Nieuwe Uilenburgerstraat 173 – 175, Amsterdam
OPENING TIMES  Opened everyday from:
09.00 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 friendly
  • Il tour dura circa 40 minuti
  • Sono disponibili guide in oltre 28 lingue
  • Scopri tutto su ‘the Amsterdam Cut’
  • Il tour è 7 giorni su 7 e completamente gratuito

Gassan Diamonds

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