Amsterdam: Factory Tour at Oldest Diamond Factory

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 30 minute guided tour, you will discover how rough diamonds are transformed into sparkling masterpieces, watch real diamond polishers and goldsmith at work. 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. Experience the atmosphere of a factory where craftsmanship has been passed down since 1840 and enjoy one of Amsterdam’s most unique cultural experiences on Museumplein.