This is an enterprise where you can listen to a short lecture about diamonds, see the processing process, get acquainted with the types of diamond cutting, price the products and, if desired, purchase them. This is more memorable than just a shop window. Diamonds, along with cheese and tulips, are a proven Amsterdam brand. And if you add the Van Gogh Museum located across the street and the grave of Rembrandt's beloved Saskia to the visit to the factory, then the "red lanterns" and the smell of marijuana will not spoil the impression of the city.