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Spring is coming
Time to update your jewelry for the next season

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Diamonds Since 1840

More facets, more sparkle, more fire!

Royal 201 Collection

Royal Coster Diamonds is famous for the highest level of craftsmanship for centuries. From this drive for perfection, the Royal 201 was born. Experts review the Royal 201 as the most beautiful diamond cut ever. Discover our selection of timeline classics with the sparkle that never ends.

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Diamond Jewelry

Diamond Engagement Rings
All Diamond Rings
Diamond Bracelets
Diamond Necklaces
Diamond Earrings
Diamond Watches

Book a Diamond Factory Tour

Our guided diamond factory tour is completely free of charge. We give free guided tours in more than 35 languages. Our guides tell you about our rich heritage. They explain how to evaluate a diamond and show you some amazing stones. So get your ticket today and discover the magical world of diamonds!

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Diamond Stories

Diamond Products

Most Popular Engagement Rings

The proposal is one of the most exciting moments of your life. You decided you want to ask the one you love to marry you and live happily ever after. To mark this joyous occasion, it became custom to propose with an engagement ring. Everyone has their own taste. But the most popular engagement rings are those with one or more diamonds. That’s why I am thrilled to say we have a diamond for every person. And therefore an engagement ring for every person. After all, you want to make sure the ring you choose fits your partner perfectly. If you have no idea where to start looking, we are here to help you get started.

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Knowledge

Why are diamonds so rare?

We often get the question: “why are diamonds so rare?” But many people also wonder whether diamonds are rare at all. The answer is both yes and no. Let me explain why that is.

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