Coster Diamonds
the oldest diamond polishing factory in Europe
Coster Diamonds has cut many famous diamonds, such as the world famous Koh-I-Noor, a blue-white diamond which is part of the British crown jewels. They also cut the beautiful Dresden diamond, which belongs to the Saxon Crown Jewels. During the tour you will also see the Lucullan, the largest unpolished gem in the world.
Coster Diamonds polishers at work
Free guided tour
Book a free guided tour through the mystical world of diamonds in your own language. Learn about the 4 C's of diamond valuation, the origin of diamonds and see craftsmen and women cut and polish rough stones into beautiful diamonds in all shapes and sizes.〉 Book a free tour

In addition to a guided tour through the building, which will take you along the most famous diamonds this diamond merchant has, you will be able to see how diamonds are cut and polished.
At the end of the tour you will have the opportunity to buy diamonds or other jewellery. If you do not intend to buy diamonds it is still quite interesting to step inside.
How to get there?
By tram: 2 or 5 stop WaterloopleinBy bus: 145, 170, 172, 174 or 197 stop Rijksmuseum jdksfahk
Coster Diamonds
Paulus Potterstraat 2-6Amsterdam (Museumplein)
official website
www.costerdiamonds.com
Opening hours
Sun | 09:00 | - | 17:00 |
Mon | 09:00 | - | 17:00 |
Tue | 09:00 | - | 17:00 |
Wed | 09:00 | - | 17:00 |
Thu | 09:00 | - | 17:00 |
Fri | 09:00 | - | 17:00 |
Sat | 09:00 | - | 17:00 |
Queen Maxima of the Netherlands wearing royal jewels from Coster Diamonds
Diamond industry
