Become a true expert | Polish and keep your own diamond | 4 hours | 18+
Step into the world of diamond artistry with a 4-hour expert-led polishing workshop in Amsterdam. Learn the craft, polish your own diamond, and take home a one-of-a-kind gem and jewelry piece.
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Difficulty
easy
Duration
4 hours
Fitness Level
No physical fitness required; suitable for all adults
Wildlife
History
Amsterdam has been a diamond trading center since the 16th century, blending commerce with artisan skill.
Conservation
The workshop promotes sustainable sourcing by using ethically certified diamonds and responsible polishing techniques.
Royal Coster Diamonds
Become a true expert | Polish and keep your own diamond | 4 hours | 18+
Royal Coster Diamonds is the world's oldest diamond polishing factory, located in Amsterdam, Noord-Holland. The business operates a museum, showroom and live workshops where visitors can observe master craftsmen polishing and setting diamonds. Royal Coster offers a range of guided experiences, from free factory tours to private, curated sessions like the Royal Engagement Experience and the Diamond Masterclass.
Visitors can view historically significant displays including a replica of the Koh-i-Noor and the Royal 201 cut, as well as an extensive collection of loose and unset diamonds. The Luxury Shopping Experience highlights a showroom with a reported 20,000 loose diamonds and options for custom design, while several tours include tax-free shopping for eligible purchases. Group and private formats are available, including short guided tours and multi-hour practical workshops taught by an experienced polisher.
Royal Coster’s combination of live demonstrations, a diamond museum and hands-on opportunities provides both educational value and direct access to diamond sales and bespoke design. The business emphasizes craftsmanship, transparency in diamond valuation, and a curated visitor experience. For travelers and buyers seeking a historically rooted insight into diamond polishing and design in Amsterdam, Royal Coster Diamonds offers credible tours, private consultations, and unique experiences that showcase centuries of diamond expertise.
Heritage
World's oldest
Historic diamond polishing factory
Location
Amsterdam, Noord-Holland
Located in Amsterdam
Diamond Stock
20,000 loose diamonds
Extensive loose and unset selection
Tours Offered
7 experiences
Guided tours, private workshops, shopping
Reserve a guided tour, engagement ring consultation, or masterclass and experience historic diamond craftsmanship in Amsterdam — spaces are limited.
Book Early to Secure Your Spot
Limited to two participants per session, advance booking is essential to guarantee your place.
Dress Comfortably and Neatly
Wear comfortable clothing suitable for sitting and precision work in a clean indoor environment.
Arrive On Time for Your Tour
Prompt arrival ensures you get the full museum tour and workshop experience without rush.
Bring Identification
Participants must be 18 or older and require valid ID for registration.
Comfortable Indoor Clothing
You’ll be seated for detailed hands-on polishing; dress comfortably to stay focused.
Notebook and Pen
Useful for jotting down techniques and insights shared by the master polisher.
Camera or Smartphone
Capture your finished diamond and moments during the private museum tour.
Light Sweater or Jacket
The workshop space can be cool, especially in spring; layers keep you comfortable.
spring