Amsterdam: Visit the Oldest Diamond Factory in the World｜Netherlands

Just around the corner from the Rijksmuseum, step inside the oldest still operating diamond polishing factory in the world and experience 186 years of craftsmanship at Royal Coster Diamonds.

Choose the experience that fits you:
- The Diamond Factory Tour is a 30-minute introduction to the factory, guided or self-paced with an audio guide.
- The Diamond Experience is a private 45-minute tour that includes a private diamond presentation. *
- The Royal Experience is a private 60-minute tour with personal guided attention throughout, and it's the only option that includes a complimentary Royal Coster Diamonds gift.*

During this experience, you will enjoy a journey through the royal history, craftsmanship, and exceptional diamonds that have made Royal Coster Diamonds world famous.

Learn about the 4 C's of diamond valuation Cut, Color, Clarity, and Carat and how each factor determines a stone's quality and value.

Along the way, you will uncover the stories behind some of the world’s most famous diamonds, admire replicas of the legendary Koh-i-Noor and the Cullinan—the largest gem-quality rough diamond ever found—and discover the Royal 201, our patented cut known as the most brilliant diamond in the world.

Children are welcome and enter free.

From live craftsmanship to royal stories and iconic diamonds, this is one of the most unique experiences on Museumplein.