Just around the corner from the Rijksmuseum, step inside the oldest still operating diamond polishing factory in the world and experience 185 years of craftsmanship at Royal Coster Diamonds.

During this 45 minute experience, you will dive deeper into the fascinating world of diamonds through live polishing demonstrations, diamond presentations, and interactive storytelling.

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 the replica of the legendary Koh i Noor, the Cullinan replica the largest gem-quality rough diamond ever found and discover the Royal 201, known as the most brilliant diamond in the world.

A perfect experience for visitors who want to discover more about Amsterdam's diamond heritage and craftsmanship.