center stone
Carats | 0.09 |
Clarity | Small Inclusions |
Color | Wesselton |
Cut | Brilliant |
Stones | 7 |
Material | Default Title |
side stones
carats | 0.11 |
clarity | Small Inclusions |
color | Wesselton |
cut | Tape |
stones | 7 |
18k white gold necklace
- Unit price
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center stone
Carats | 0.09 |
Clarity | Small Inclusions |
Color | Wesselton |
Cut | Brilliant |
Stones | 7 |
Material | Default Title |
side stones
carats | 0.11 |
clarity | Small Inclusions |
color | Wesselton |
cut | Tape |
stones | 7 |

The most trusted diamond house since 1840.
We offer free shipping on all orders, with the following delivery options:
- Free next business day shipping in The Netherlands, Belgium, and Luxembourg
- Free 3-day shipping for the European Union
- For non-EU and other international (tax-free) shipping, please contact us first
All shipments are insured free of charge.
Read more about our shipping options
Changed your mind or your significant other had other ideas? Not to worry. At Coster, we understand that plans change and we offer effortless exchanges or refunds.
Picked the wrong size? Rest assured that most rings can be refitted, free of charge.
See our return policy for more information
At Royal Coster Diamonds, we pride ourselves on creating high-quality, luxurious jewelry that will stand the test of time. We offer a 1-year limited warranty on all of our jewels, settings, and diamonds, to give you peace of mind and assure you of the quality of our products.
Also see our Terms & Conditions
At Royal Coster Diamonds, we believe that fine jewelry should be treated with the utmost care and attention. That's why we offer a lifetime yearly walk-in cleaning service for all of our jewels, to ensure that they stay sparkling and beautiful for years to come.
Our cleaning service includes rhodanizing of rings to restore their shine and protect them from tarnishing.
Learn more or book a cleaning
At Royal Coster Diamonds, we are committed to providing our customers with the highest level of transparency and trust. That's why all of our jewels come with a Royal Coster Diamonds Certificate of Purchase and Authenticity.


The art of giving
All our jewelry comes in our signature blue box with a classic yellow ribbon.
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Visit your favorite items at our Flagship location in Amsterdam.