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.
During our Luxury Shopping Experience, you will be completely pampered. Choosing a diamond is a special occasion. While enjoying a glass of champagne, one of our diamond consultants will take you through all the ins and outs involved in choosing the perfect diamond.
You will see how our craftsmen and -women cut and polish rough stones into beautiful diamonds and set them in jewelry. You will receive all the information you need to make an informed decision when you want to buy loose diamonds or diamond jewelry. With our extensive collection of more than 20,000 pieces, we have something for every budget. Our guides are known for their professional and honest advice and our goldsmiths create custom designs in less than 30 minutes.
With more than 180 years of experience, we have successfully guided thousands of customers in their search for beautiful jewelry.
Royal Coster is the oldest diamond polishing company in the world, located in the heart of Amsterdam on the beautiful Museum Square. Due to our rich history and many years of experience, we are rightly seen as the authority in the field of diamonds. We offer the highest standard of certifications and guarantee fair and sustainable diamonds at all times. In addition to the sale of diamonds, Royal Coster Diamonds functions as a knowledge center in the heart of the “City of Diamonds”. Come by and discover the wonderful world of diamonds
This year, Royal Coster Diamonds celebrates its 180th anniversary. But there is extra reason for a party.
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 Masterclass Deluxe is given exclusively by our best diamond polishers. They give you an in-depth Masterclass that ends – if you do it correctly – with an official certificate.
