Diamonds with an Extra Sparkle
Royal Coster Diamonds was founded in 1840 and is the oldest operational diamond polishing factory in Europe. Manus Coster started it as a single diamond polisher, and quickly transformed Coster Diamonds to a history-changing enterprise who, among other things, introduced the first horse-powered and later the first steam powered diamond factory.
For the last 175 years their craftsmanship has attracted royals around the world to visit them. From Empress Sisi to Napoleon, they all wanted to see the craftsmanship of the men and women of Coster Diamonds. And today, at the Museum Square between the Van Gogh and the Rijksmuseum, Coster offers free guided tours to more than 350.000 tourists every year.
They - like the royal guests before them - learn about diamond valuation and see the amazing diamond artifacts from their rich history, such as the Koh-i-noor, repolished for the Queen of England, the diamond watch created for the Queen of the Netherlands and the Dresden Diamond. With an accommodating staff of 110 staff members, with 22 nationalities and 26 languages spoken, Coster Diamonds is a must-see tourist attraction in Amsterdam.
In July 2016, His Majesty King Willemalexander awarded Coster the Royal title for its legacy, high quality craftsmanship and reliability. At Coster, you can choose from the largest collection of unset diamonds in Europe for very competitive prices and with Tax-free sales for visitors outside the EU. A facility offered is the direct-refund in their store in association with partner Global Blue.
There are 20 showrooms for groups, 2 VIP rooms and Coster Watches, a specialized high-end watch boutique with many famous brands such as Union Glashütte, Piaget, Tudor, Chopard, Tag Heuer, Carl F. Bucherer, Longines, Rado, Mont Blanc, Titoni, Frederique Constant, Hamilton and many more.
A regular brilliant has 57 facets. The Royal 201, a patented diamond cut, handpolished from the finest quality rough diamonds by the master polishers at Royal Coster, has not 57, not 100, not 150, but an amazing amount of 201 facets polished into its surface. This creates the ultimate sparkle. The 201 Room has a broad collection of this unique and stunning diamond set into the most beautiful jewelry. A truly Royal diamond.
The separate diamond museum tells the diamond story from a rough diamond to a finished gem. It shows how Amsterdam came to known as the city of Diamonds with its rich 400 year history in diamond polishing and trade. There is also a museum shop with related products and jewelry.
It’s a story that began in 1840, when diamond cutter Moses Elias Coster founded Coster Diamonds in a factory near the Waterloo Square, located in the heart of Amsterdam. It was a long journey with an eventfully history that eventually resulted into close relations with royals around the globe.
Prince Albert of England was the first to embrace the craftsmanship of the Amsterdam diamond cutters when he got the Koh-i-noor diamond repolished by Coster. The Dutch Royal House is Coster’s most premium client and one of the finest examples of Coster’s expertise is the diamond studded watch for Queen Juliana in 1959.
Besides a free tour of the four villas located in the heart of Amsterdam, Coster Diamonds also conducts an Engagement Workshop for couples!!