Gassan Diamonds
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.

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.

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.
Free Diamond Tours
A tour at Gassan Diamonds takes around twenty minutes and is free.Open daily from 9 am to 5 pm
Book a free diamond tour
How to get there?
By tram: 9 or 14 stop WaterloopleinBy metro: 51, 53 or 54 stop Waterlooplein
By car: nearest car park Parking Waterlooplein
Diamonds
When in Amsterdam visit one of the authentic diamond factories
Gassan Diamonds
Nieuwe Uilenburgerstraat 173-175
Waterlooplein
Amsterdam
official websites
Amsterdam Diamond Group
Gassan Diamonds ![]()
Nieuwe Uilenburgerstraat 173
Amsterdam Diamond Center ![]()
Rokin 1-5 (Dam)
Van Pampus ![]()
Damrak 97
