A Royal Legacy Royal Coster Diamonds is the oldest diamond polishing factory in the world. Our craftsman create the finest diamond jewelry for royals, celebrities, heads of state and young couples visiting Amsterdam. We have more than 400.000 visitors from Europe but also from China, The U.S.A. Egypt, Indonesia, Vietnam and many more. Visit us to learn about diamonds and our Royal Legacy that spans over 175 years. Official ShowBOX App Read more
175 years of craftsmanship Read why we have been the #1 choice for high-end diamond jewelry around the world Read More
Contact our diamond consultants Our award winning diamond consultants help you select the best diamond jewelry for any budget. Contact Us
Brilliant Amsterdam Amsterdam is one of the most popular tourist hotspots due to its perfect combination of romance, culture and fun. Your trip to the City of Diamonds is not complete without a visit to Royal Coster Diamonds Showbox Read more
#4 The largest collection of diamonds Why we have been the best choice for your diamond jewelry since 1840 The 8 diamond guarantees
The 4 C’s of diamond valuation. Part 1: Carat In our 4 part video series we explain everything there is to know about what determines the value of a diamond. Read more