Amsterdam Sights

Gassan Diamonds

a steam-driven diamond cutting factory from 1878

Find out how rough diamonds are turned into dazzling exquisitely stones. During a free guided tour you can admire the diamond polishers at work while staff explains where diamonds are found and what stages a diamond goes through before it is transformed into a brilliant cut diamond.

Gassan Diamonds
Diamond polishers at work

Experience the optimal reflection of the Gassan 121, a cut developed in this diamond house and world wide patented. Subsequently an explanation is given to determine the quality of diamonds and their related value. Loose polished diamonds are shown in various sizes and qualities.

In 1989 Gassan Diamonds reopened the historical steam driven factory and brought the diamonds back to its original location and continued the tradition and craftmanship of diamonds polishing in Amsterdam, City of Diamonds for more than 400 years.

Free Diamond Tours

A tour at Gassan Diamonds takes around twenty minutes and is free.
Book a free diamond tour       open daily from 9:00 to 17:00

Gassan Diamonds
The diamond factory of Gassan Diamonds is situated in a monumental steam-driven diamond-cutting factory that dates back to 1878, close to the Waterlooplein.

How to get there?

By tram: 9 or 14 stop Waterlooplein
By metro: 51, 53 or 54 stop Waterlooplein
By car: nearest car park Stadhuis

Gassan Diamonds Amsterdam
 click on image to enlarge map

Gassan Diamonds

Nieuwe Uilenburgerstraat 173
Amsterdam (Waterlooplein)

official website

Gassan Dam Square

Amsterdam Diamond Center

Old Jewish quarter

Jodenbuurt (Jewish quarter)
with its synogogues, Waterlooplein flea market, museum, monuments