Royal Coster Diamonds: Small Group Guided Tour

Learn diamond polishing and understand valuation basics

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Amsterdam

A woman examining a diamond with a loupe while a man smiles beside her. "Coster Diamonds" is visible in the background.

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About This Experience

Visit the oldest active diamond polishing factory near the Rijksmuseum in Amsterdam. This factory, known as Royal Coster Diamonds, showcases 185 years of expertise in diamond craftsmanship. During a guided tour, see live diamond polishing demonstrations, and engage in presentations on the diamond industry. Understand the 4 Cs of diamond valuation—Cut, Color, Clarity, and Carat—and learn how these attributes affect the quality and value of a diamond. Learn the stories of renowned diamonds, including replicas of the famed Koh-i-Noor and the Cullinan, the largest gem-quality rough diamond discovered, and see the Royal 201, a diamond renowned for its brilliance.

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What’s Included

* Entry ticket * Live guide * Small-group guided tour

What's Not Included

* Food and drinks

Visit information

A group of people in formal attire are visiting a jewelry workshop with tools and equipment on the workbench in the foreground.

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€19.00

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Updated 28 Oct 2026 UTC

Location

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Amsterdam2 Paulus Potterstraat

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Visit information

Live guide languages: AR, ZH, NL, EN, FR, DE, ID, IT, JA, PL, PT, RU, ES, TR, UK, VI, YUE
Audio guide languages: HR, ZH, CS, EN, NL, FR, DE, HU, ID, JA, IT, NO, PT, PL, RU, ES, TR, SV, UK, VI, TH

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