Royal Coster Diamonds   

Chosen by Queen Victoria to re-polish the largest diamond in the world: the Koh-I-Noor.

One of the oldest diamond manufacturers in the world

Coster Diamonds has a long history of craftsmanship and expertise in the diamond industry, dating back over 180 years.

They have 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), jewelry for Prince Napoleon and for Empress Sisi.

Free guided tour

If you visit Coster Diamonds, you can take a diamond factory tour in your own language. The guides/vendors speak 25 different languages.

During the tour you see craftsmen and women cut and polish rough stones into beautiful diamonds in all shapes and sizes.

You will also see the Lucullan, the largest unpolished gem in the world.

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.

Location

Coster Diamonds is situated in 4 large 19th century villas on Museumplein in the Zuid city district. It is close to the Rijksmuseum.

Next to Coster Diamonds is Diamond Museum Amsterdam, with informative exhibitions and iconic pieces, like the Katana, Diamond Ape Skull, and the Rembrandt Diamond.

Amsterdam's upscale shopping street, PC Hooftstraat, is just a 3-minute walk away.