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.
Receive a guided diamond factory tour to learn about the magical world of diamonds. Here you find the most beautiful diamonds and diamond jewelry in the world. We give this tour in more than 35 languages.
Our engagement workshop is for couples who are preparing for an engagement or anniversary and want to learn more about diamonds before they purchase. Make buying your engagement ring an unforgettable experience.
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.