At te heart of it since 1840.

At the heart of it. Since 1840.

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Why not explore our new Luna Collection?

The Champagne Diamond Surprise

Every guest receives a glass of champagne. In each glass, we have placed a real diamond or a cubic zircon (an imitation diamond). Nobody can see the difference between a real diamond and the zirconia. That's why we have one of our master polishers with a diamond loupe to check each stone. He or she determines which stones are imitations and which are real. Of course, only a few (or one) of the stones are real diamonds. But the guests can also keep the zirconia as a beautiful memento of the entire evening. While the diamond polisher checks the diamond, he or she explains a bit about the process of recognizing a real or a fake diamond. If people have questions about their own jewelry, they will be answered in a discreet and fun manner.

This event can be held at our premises or any other venue of your choosing.

Language tour upon availability and prices upon request.
Duration and cost on location is upon request, please fill in the form below for a personalized offer.

What do you get?

- Tour available in 19 languages

- See largest diamond collection in Europe

- See the Royal 201 Patented Collection

- Learn about diamond facts

- See Koh-I-Noor, in the British Crown Jewels

- Tax free shopping

Experience a champagne tour

free diamond tour & workshops

VISIT ROYAL COSTER

Book an experience and learn about our heritage or visit us to see more diamonds & jewelry