Contact a diamond consultant

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a diamond consultant

Our award winning diamond consultants help you select the best diamond jewellery for any budget.
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BOOK A FREE GUIDED TOUR

Visit Royal Coster Diamonds

In the Heart of Amsterdam, located between the Rijksmuseum and the Van Gogh Museum lies the oldest diamond polishing factory in the world. Book a free guided tour in your own language and learn about 400 year of diamond history and see famous diamond artifacts as the Koh-I-Noor.

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A weekend in Amsterdam

Want to visit the City of Diamonds? Our travel consultants have arranged some wonderful packages for anybody looking to experience a sparkling weekend!

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The engagement workshop

Buying a diamond engagement ring is a once in a lifetime experience you will remember forever. Make sure you know what you’re buying and sit behind the diamond polishing table. A truly and unique romantic experience.

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The champagne surprise tour

Each of your visitors receives a glass of champagne. All have zircons (fake diamonds) in them except for 1, which has a real diamond. Our master polisher will determine which is which. A fun experience for every occassion.

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The Diamond Masterclass

Get in detail with head of our polishing department and world record holder for smallest diamond ever polished: Pauline Willemse during a personal 1 on 1 masterclass.

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Are you a tour operator or travel agent? Meet our country managers

Information for tour operators & travel agents

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The Coster Diamonds V.I.P. Service

Experience the same treatment as Empress Sissi, Napoleon and Queen Elizabeth.

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Coster Diamonds