Visit the oldest diamond polishing factory in the world and enjoy a free guided tour in your own language. Watch the craftsmen and women cut and polish rough stones into beautiful diamonds. During the tour your experienced guide will tell you about the origins of diamonds, the 4C's of diamond valuation, the origin of diamonds and much more.
In a private room you will see part of the largest collection of unset diamonds and you will also see the Royal 201 diamond, This is Royal Coster's own patented diamond and known to be the best diamond in the world.
See the Koh-I-Noor, in the British Crown Jewels and some more of spectacular diamond artifacts.
Enjoy the jewelry collection at Royal Coster Diamonds!
Royal Coster Diamonds invites you for a free guided tour in the heart of Amsterdam. Explore the mystical world of diamonds in your own language. Watch our craftsmen and women cutting and polishing the most beautiful diamonds and see our goldsmiths making our jewelry collection.
If you are looking for a sparkling exciting addition to any event; the Champagne Surprise is perfect for you. Every guest gets a glass of champagne with a little sparkling stone inside. But is it a real diamond or a fake one?
Our diamond polishers will check each stone closely with a diamond loupe and reveal who is the lucky winner.
This year, Royal Coster Diamonds celebrates its 180th anniversary. But there is extra reason for a party.
Experience diamonds like Royals do. Royal Coster Diamonds is the oldest diamond polishing factory in the world. Since our establishment in 1840, Royals from all over the world came to Amsterdam to see our impressive craftsmanship.