Engagement rings at Royal Coster Diamonds

As the largest engagement jeweler in the Netherlands, Royal Coster Diamonds offers an unrivaled collection of engagement rings and loose diamonds. With the largest loose diamond collection in the country, you have complete freedom to create a ring that matches your wishes, budget, and style.

Since 1840, we have guided customers through one of the most important choices of their lives. In our Boutique in Amsterdam, we combine expertise, personal guidance, and immediate availability.