Contact a diamond consultant

Contact
a diamond consultant

Our award winning diamond consultants help you select the best diamond jewellery for any budget.
  • This field is for validation purposes and should be left unchanged.

The Royal 201 Collection

A regular brilliant has 57 facets, the Royal 201 has 201.
More facets, more fire, more sparkle.

See our collection

Sapphire Diamonds

Did you know Sapphire diamonds aren’t always blue?
Read more in our sapphire diamond guide.

Read more

Royal Diamond Jewelry

At Coster Diamonds we don’t believe in selling our hand-crafted diamond jewelry of such quality online. We do believe in preparing you as much as possible and informing and helping you select the perfect diamond jewelry.

Please browse around to see some of diamond jewelry we have to offer and remember we have a lot more available at our monumental villa’s in the Heart of Amsterdam. There is a reason Amsterdam is known as City of Diamonds.

For customers outside the E.U. region we offer an even more attractive tax-back.

See all diamond jewelry

Colored diamond jewelry

Our collection of colored diamond jewelry is elegant yet dazzling. Perfect for that special night out.

See Collection

The honest story about the 4 C's of diamond valuation

Read more

The Coster Diamonds V.I.P. Service

Experience the same treatment as Empress Sissi, Napoleon and Queen Elizabeth.

Read more

Coster Watches

A luxury boutique with high-end watches from the most renowned brands in the business.

Read more

Diamond Bracelets

Elegant, timeless diamond bracelets

See Collection

Award winning customer service

Our diamond consultants help you select the best diamond jewelry for any budget.

Read more

Visit the City of Diamonds

Free guided tours in more than 27 languages

Read More

Royal Coster Diamonds