Coster Diamonds
Also known as the Royal Coster Diamonds, this is the
world's oldest diamond polishing factory still in operation. The factory was
established in 1840 by Moses Elias Coster in Waterlooplein, Amsterdam. In 1970,
the company moved its location to the Paulus Potterstraat. Coster Diamonds is
also the brains behind the Diamond Museum of Amsterdam. The company set up this
museum in 2007 to display its exquisite diamond products. Some of the diamonds
the factory has handled include the Koh-i-Noor. Besides, the factory also
re-polished the Dresden Green Diamond, currently held at Dresden Castle.
Coster Diamonds has also polished the world's smallest
diamond. The 0.0000743 carat stone is available on display within the factory.
The company offers free guided tours to their clients, available in over 25
languages. During these tours, you will uncover how diamond cutting and
polishing work. Afterward, you can sample the different kinds of diamonds
available in the factory's showrooms. Coster Diamonds has numerous private
sales rooms for buyers looking for a bit of discretion.
Gassan Diamonds
Gassan Diamonds is located at NieuweUilenburgerstraat
173-175 - 1011LN Amsterdam. Like Coster Diamonds, Gassan Diamonds is a factory
and a showroom, all rolled into one. You can sample loose diamonds and a wide
assortment of diamond jewelry. The factory was established in 1945, right after
the end of World War 2. The founder, Samuel Gassan, started a company that
traded raw and cut diamonds.
Gassan Diamonds employs staff who speak multiple languages
and are always happy to take you through breathtaking tours of the factory's
history. You will learn about the origin of diamonds and the cutting process
and have the rare privilege of viewing the GASSAN 121. GASSAN 121 is an iconic
diamond famous for its many dimensions. The additional facets account for its
beauty and brilliance. Though it originally came in 57 aspects, GASSAN 121 has
since been developed into 121 facets.
As a jewelry retailer, Gassan is the preeminent leader in
the fields of Haute Horlogerie and Haute Joaillerie. You will find their shops
on the ground floor, where they feature an extensive range of diamond jewelry.
The company primarily works with high-end brands, which speaks to the elegance
and prestigious nature of their jewelry. Gassan is open every day from 09:00 to
17:00. Remember to secure an appointment first to have a splendid experience
while touring the company.
Amstel Diamonds
Here is another factory that enjoys a colorful history as a
diamond polisher. Amstel Diamonds offers both vintage and contemporary diamond
designs. The company also promises a lifetime warranty on its treated diamonds.
Plus, you get a 7-day viewing period.
Amstel is open every day from 9 am to 5 pm and on Sunday
from 10 am - 5 pm. Customer service here is exceptional. The company will take
you through a journey of discovery before you can find your preferred diamonds.
The Royal Asscher Diamond
Company
The Asscher dynasty owns the Royal Asscher Diamond Company.
The company's history goes back to 1854 when the Asscher family of diamond
experts founded it. The famous Asscher cut, designed and commissioned by Joseph
Asscher, gave this company some spotlight during the 1920s and 30s.
However, the company was already a household name years
before that. As a significant diamond cutter, its role was cemented in 1908,
when King Edward VII of Great Britain commissioned Asscher to cleave Cullinan.
Cullinan was a 3,106-carat, which remains one of the largest diamond finds to
date.
Joseph Asscher was able to cut up to nine pieces from
Cullinan. The largest of these cuts is a 530.20-carat Cullinan I, also known as
the Great Star of Africa. The second-largest is the 317.4-carat Cullinan II,
commonly referred to as the Second Star of Africa. These two diamonds form part
of the UK Crown Jewels. Seven other diamonds, weighing 208.29 carats in total,
are under Queen Elizabeth II's private ownership.
Royal Asscher is presently one of the most successful
diamond companies in the world. Besides Amsterdam, the company has jewelry
stores in Japan and China.
The Diamond Stock Exchange
The Diamond Stock Exchange, locally known as De Amsterdamse
Diamantbeurs, was established in 1870. It is the oldest diamond exchange center
in the world. De Amsterdamse Diamantbeurs is not primarily a diamond-cutting
factory or a jewelry vendor. Instead, it is more like a regulatory body that
enforces the rules of the diamond trade.
The Diamond Exchange faced invasions during the Second
World War. Most traders were forced to flee Holland, and those that remained
had their merchandise confiscated. However, it eventually survived those
onslaughts, and operations resumed as usual. On January 1, 2019, the Bourse
moved to Amstelveen, a short distance from Amsterdam.
Besides the diamond factories discussed here, which also double
as jewelry outlets, Amsterdam is home to many other renowned diamond vendors.
Examples include Cartier at PC Hooftstraat 132-134, 1071 CE Amsterdam, and
Zazare Diamonds at Weteringschans 89, 1017 RZ Amsterdam. Another reputable
merchant is Swarovski, situated at Kalverstraat 113, 1012 PA Amsterdam. Each of
these stores prides itself on providing unique pieces of diamonds. You can
choose your desired setting and cut, after which it takes roughly half an hour
for the jewel to be ready.