Hi, it looks like you're in The Netherlands!
You do know we have a Dutch website, right?
You do know we have a Dutch website, right?
At Royal Coster Diamonds, we have the most prestigious watch brands. Discover a world of Haute Horlogerie.
Looking for advice when buying a piece of diamond jewelry? Our experienced diamond consultants are standing by. Contact us now or schedule an appointment.
Our excellent personal service goes beyond the moment of shopping. In the unlikely event that you’ve encountered some problems with your diamonds or jewelry, you want reliable customer service. With jewelry being a luxury item, you are in full right to expect a highly dedicated service. And with an established luxury diamond polishing factory such as Royal Coster, that’s exactly the kind of service we provide.
Our customer service is available from Monday to Friday, from 9:00 AM to 5:00 PM. Our reception is also available on Saturdays and Sundays. In our FAQ you can find the answers to most questions.
For general questions, you can call reception between 9:00 AM to 5:00 PM at +31 (0)20-305 5555 or send an e-mail to info@royalcoster.com. For questions or remarks about diamonds, jewelry, tours or workshop, please enter the form.
For general questions, you can call reception between 9:00 AM to 5:00 PM at +31 (0)20-305 5555 or send an e-mail to info@royalcoster.com. For questions or remarks about diamonds, jewelry, tours or workshop, please enter the form.
We often receive questions about our diamonds, our jewelry, our prices, tours, and workshops. Probably the answer to your question can be found on our page with frequently asked questions. Not sure yet? Feel free to contact us.
We often receive questions about our diamonds, our jewelry, our prices, tours, and workshops. Probably the answer to your question can be found on our page with frequently asked questions. Not sure yet? Feel free to contact us.
We often talked about the importance of seeing a diamond with your own eyes before making a purchase. However, we also understand this is not always possible. That is why we arrange free worldwide shipping.
We often talked about the importance of seeing a diamond with your own eyes before making a purchase. However, we also understand this is not always possible. That is why we arrange free worldwide shipping.
Some know their ring size by heart, but when you want to find out her ring size without her knowing, that can be a bit trickier.
