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.

 

Create your own engagement ring

At Royal Coster Diamonds, you create your engagement ring entirely yourself. You first select the diamond from our extensive collection of loose diamonds, sourced from the largest certifying institutes such as GIA and IGI. You then choose the ring setting in white gold, yellow gold, or rose gold.

Our diamond experts guide you personally at every step. They take the time to explain the differences between cut shapes, carat weight, and clarity, so you can make a well considered choice.

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The largest loose diamond collection in the Netherlands

Thanks to our exceptionally large stock of loose diamonds, you can compare and select immediately. From subtle diamonds to impressive sizes, all stones are directly available in our vaults. This means no long waiting times and no uncertainty.

You see the diamond with your own eyes and know exactly what you choose.

Engagement Rings

Signature C Ring

Solitaire Embalished

Halo Embelished

Solitaire

Solitaire

Signature C Ring

Ready within 30 minutes

Once you’ve made your final choice you can sit back, relax, and watch our highly qualified goldsmith working their magic. Within just 30 minutes, your diamond will be expertly set into your chosen setting. And while you wait, why not indulge in a glass of champagne? After all, this is a special moment.

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Personal guidance in a calm setting

You do not choose an engagement ring every day. That is why we offer a calm and discreet setting where you have all the space to ask questions and compare options. Our experts think along with you and provide honest advice, fully tailored to your situation.

Visit our Boutique in Amsterdam

You are welcome in our Boutique to view the collection and create your engagement ring. An appointment is possible, but we are also happy to assist you without an appointment.

Discover the largest engagement ring collection in the Netherlands today and create a ring that truly suits you.