THE ADVENTURE COLLECTIVE® · Independent discovery and booking for outdoor travel
Step into Amsterdam’s legendary diamond world with GASSAN Diamonds. Witness master cutters at work and discover the brilliance of the GASSAN 121 cut in this historic 1879 factory turned immersive experience.
Step into Amsterdam’s legendary diamond world with GASSAN Diamonds. Witness master cutters at work and discover the brilliance of the GASSAN 121 cut in this historic 1879 factory turned immersive experience.
Book with Gassan
Verified experiences and guided adventures in the surrounding area.
Operated by Gassan · Amsterdam, Noord-Holland
Situated in the heart of Amsterdam’s historic district, GASSAN Diamonds offers an insightful immersion into the world of diamond cutting and craftsmanship within a meticulously restored 1879 diamond factory. This isn't just a retail stop—it’s a rare window into the centuries-old Dutch mastery over one of nature’s hardest treasures. Amsterdam’s diamond industry, evolving over 400 years, shaped the city’s economic heartbeat, and GASSAN stands as a modern-day standard-bearer for that legacy.
Step inside the spacious workshop where skilled artisans transform rough stones into mesmerizing gems. The tour unveils the intricate process of polishing and cutting, highlighted by the patented GASSAN 121 cut, featuring 121 facets that push brilliance and fire beyond conventional diamonds. It’s a technical marvel that echoes the relentless pursuit of perfection inherent in diamond art.
Beyond the workshop, visitors can admire a curated collection of loose diamonds reflecting varying sizes and grades, along with an impressive assortment of high-end jewelry and watches. Among the boutique’s gems is the exclusive in-house Rolex Boutique, complete with a certified watchmaker service center visible to the public—a fusion of jewelry art and precision horology seldom seen together.
Whether you’re a gem enthusiast or simply curious about the hands and heritage behind these shimmering treasures, GASSAN’s guided tours offer a compact 45-minute journey packed with history, science, and artistry. Open year-round and accessible daily, the experience is as much about cultural heritage as it is about craftsmanship.
Visitors to Amsterdam seeking a distinctive departure from typical sightseeing will find GASSAN Diamonds an enlightening stop—one that ties together geology, skilled labor, and luxury in one unforgettable package. Parking on-site and multilingual guides ensure this is a seamless addition to any itinerary.
easy.
45 minutes.
Suitable for all fitness levels as this is a walking and standing tour indoors.
The guided tour lasts approximately 45 minutes, providing an in-depth look at diamond cutting and jewelry.
Yes, guests aged 12 and older are welcome, making it an educational experience for teens and adults alike.
While walk-ins may be possible, booking in advance is recommended to ensure availability and preferred language guides.
Yes, the boutique offers an extensive collection of loose diamonds, jewelry, and watches, including exclusive Rolex models.
Yes, there is free parking on site for visitors, a convenient option in central Amsterdam.
Photography may be restricted inside the workshop to protect the artisans’ work environment; always check with staff.
Amsterdam’s diamond trade began in the 17th century, and its refined cutting techniques have influenced global luxury markets ever since.
GASSAN incorporates sustainable practices by sourcing responsibly and maintaining energy-efficient operations within the historic factory building.
Gassan is a family-owned diamond company located in Amsterdam, Noord-Holland. Housed in a carefully restored 1879 diamond factory, Gassan operates specialized visitor experiences that showcase diamond cutting, polishing and jewelry craftsmanship. The company offers hands-on and guided tours including the Diamond Polishing Experience Tour, See Diamonds In Style Tour, Gassan Diamond Experience Tour and the Diamond & Champagne Tour. Each experience highlights the workshop process and the unique GASSAN 121 cut. Under expert supervision, visitors can learn the fundamentals of the 4 C’s, observe craftsmen transforming rough stones into polished gems, and — in hands-on sessions — add facets to a stone and receive a certificate of completion. Several tours include champagne and exclusive access to luxury jewelry and watches, including a dedicated Rolex Boutique. Gassan emphasizes transparency and education during every visit. Guides explain diamond terminology, grading basics and practical demonstrations without technical jargon, making complex processes accessible to both collectors and first-time visitors. The restored factory setting preserves historical character while operating with contemporary standards for safety and professionalism. For guests seeking memorable events, the Diamond & Champagne Tour introduces playful discovery elements such as a sparkling cocktail with a hidden gem; winners receive a genuine diamond and a certificate of authenticity. All visits are designed for small groups to maintain a focused experience. Gassan serves visitors interested in gem education, bespoke jewelry and premium watch shopping, providing a trusted, informative and memorable Amsterdam diamond experience. Advanced restoration displays and transparent sourcing information further support visitor confidence today.
Book with Gassan