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Royal Coster Diamonds
With nearly 200 years of experience, we are experts in diamond cutting. We have created jewelry for Prince Napoleon, for Empress Sisi and in 1852, the craftsmen of Royal Coster were chosen by Queen Victoria to re-polish the largest diamond in the world; the Koh-I-Noor. Located on the Museumplein in Amsterdam, we are at your service for diamond jewelry, high-end watches, tours and workshops.
Luxury Watches
At Outlet Prices
Up 20% discount
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Gift Card
Looking for a meaningful and personal gift for someone? Surprise that special person with our gift card to find their dream piece of jewelry.
signature collections
tours and workshops
Mystical world of diamond craftmanship
Design your own ring
Send a sketch of your own design and let our goldsmiths fulfill your wish
Share our knowledge
Learn more about the magic of diamonds
A Guide to Understanding Watches: From History to Care
Discover the fascinating history of mechanical watches, from the 'Nuremberg Egg' to the advent of quartz. At Royal Coster Diamonds, explore our collection of luxury watches, including Coster Watches,...