Gassan Diamonds, Amsterdam

Gassan Diamonds, Amsterdam

Gassan Diamonds is a family-owned business in diamond and jewelry trade that was founded in 1945 by the Dutch diamond trader, Samuel Gassan. It occupies a large and imposing brick building from 1897, formerly the diamond polishing factory of Gebroeders Boas on Nieuwe Uilenburgerstraat, in which Samuel was trained as a diamond polisher prior to World War II.

Back then, many local Jews had worked as diamond cutters and polishers, while there’s little sign of the industry hereabouts today. This factory in the center of Amsterdam – once the largest diamond-polishing enterprise in the world and the first to use steam power – is the main exception.

After the death of Samuel Gassan in 1983, the company was taken over by his grandsons, Benno and Guy Leeser. The former has been with the company since 1973 and is the president of the headquarters.

The enterprise is now open to the public on a guided tour where you can learn about the various stages of diamond polishing and observe skilled craftsmen at work as they transform precious crystals into dazzling ready-to-wear pieces. Other than the cutting and polishing areas, free one-hour multi-language tours include a gambol around Gassan’s glittering collection of watches, diamonds, and jewelry (you are unlikely to find much in the way of bargains here).

Opening Hours:
Daily: 9am-5:30pm
Free admission

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Gassan Diamonds on Map

Sight Name: Gassan Diamonds
Sight Location: Amsterdam, Netherlands (See walking tours in Amsterdam)
Sight Type: Shopping
Guide(s) Containing This Sight:

Walking Tours in Amsterdam, Netherlands

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Tour Duration: 2 Hour(s)
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