The Virtual Tour 

Watch the virtual tour for a sparkling impression of Coster Diamonds. This tour will show you the beautiful location and the treasures of diamonds, jewels and watches, our unique location and this buildings will show you why Amsterdam is the City of Diamonds for centuries.

Katana Sword

This masterpiece of art has been fabricated in the glass workshops of Murano, Venice. This solid piece of glass is molded into it's final shape by hand at a temperature of 1200 degrees Celsius, which is an extremely delicate process, known to the Murano glass experts only.

Now on display at the Diamond Museum Amsterdam.

Plan your trip

In addition to our free guided tours in the diamond factory, we also offer various tours in Holland like the Cheese market, Flower market and even tickets for the top attractions in Amsterdam. We offer a great variety of excursions with lots of pickup places in Amsterdam. Visit us at Keytours Excursions office which is located at the entrance of the Diamond Museum and reserve your excursions in advance. If you rather reserve online, just visit the website of Keytours Excursions and make your selection at our advanced booking system. Plan your trip in advanced, make a reservation.

Hop on - Hop Off

Experience Amsterdam from this sightseeing bus.

You will pass all unique locations of the beautiful city of Amsterdam. Visit Coster and have a trip by bus, you will have a great day!

The busstop is in front of our buildings.

Mayor visit

August 25, 2011 , the mayor of Amsterdam, Eberhard van der Laan, visited the factory of Coster Diamonds on the Museumplein. The Mayor was shown around the premises and was very impressed by the companies achievements since the establishment in 1840.
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