Which Place is Known as the Diamond Capital of the World?

Diamonds are rare, sparkling gems made entirely of carbon. They are the hardest natural material found on Earth. Right now, Russia produces about 33% of the world's diamonds, while the United States buys nearly 51% of all diamond jewellery.

Large mines such as Jwaneng in Botswana produce more than 12 million carats each year. Around the world, the diamond jewellery market is valued at over $80 billion a year. 

But can you guess which city handles 84% of all rough diamonds? In this article, we'll explore the history and influence of the world's real "Diamond Capital".

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Which Place is called the Diamond Capital of the World?

Antwerp is a historic city in northern Belgium, which is often called the Diamond Capital of the World. This diamond city has held its title since the 15th century due to its strategic port and skilled artisans.

Today, about 84% of rough diamonds and half of all polished diamonds pass through its well-known Square Mile.

This small area is home to more than 1,500 diamond companies and four top diamond exchanges. It is famous for the "Antwerp Cut" and strong ethical standards, making it a trusted centre for gemstone trading and fine craftsmanship.

5 Lesser-Known Facts About Diamonds

• Most diamonds are 1 to 3.5 billion years old, meaning they formed deep in the Earth long before the first dinosaurs.
• It is the only gemstone made of a single element, 100% carbon bonded in a unique cubic crystal structure.
• While tough, a diamond will burn and convert to carbon dioxide gas if heated to 763°C.
• Scientists discovered a white dwarf star named "Lucy" that is essentially a 10 billion trillion trillion carat diamond.
• The rare mineral Lonsdaleite, often found at meteorite impact sites, is estimated to be 58% harder than a diamond.

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Why is Antwerp called the diamond capital of the world?

Antwerp has earned its title through a unique mix of historical luck and scientific mastery. Here is why this Belgian city remains the heart of the global diamond trade.

i. A 500-Year Historical Legacy

Antwerp's journey began in the 15th century. Its location as a major port on the River Scheldt made it the perfect gateway for gemstones arriving from India.

• The First Decree: In 1447, the city passed a law to protect diamond traders, making it a safe haven for business.
• The Polishing Revolution: Around 1476, a local jeweller named Lodewyk van Bercken invented the scaif. This was a polishing wheel infused with diamond dust that allowed craftsmen to polish all facets of a diamond symmetrically for the first time.

ii. Scientific Precision and Grading

Today, Antwerp is a leader in "gemological science". It isn't just about selling; it is about the physics of light.

• Mastering Refraction: Antwerp cutters perfected the "Antwerp Cut", which uses precise mathematical angles to maximise the diamond's Refractive Index (2.42). This ensures that light entering the stone reflects perfectly, creating maximum "fire".
• High-Tech Labs: The city is home to HRD Antwerp, one of the world's most advanced laboratories. They use micro-spectroscopy and automated grading systems to ensure every stone is 100% authentic and ethically sourced.

iii. Massive Global Infrastructure

• The Square Mile: This tiny district handles 84% of all rough diamonds and 50% of all polished diamonds in the world.
• Trade Volume: It is home to four diamond bourses (trading floors) and over 1,500 specialised firms, making it a "one-stop shop" for the global industry.

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Comparing Antwerp, Surat and Dubai

Antwerp sets the standards for money and quality in the diamond trade, and many expensive or rare diamonds are certified there. Surat is known for its skilled workers, and most diamonds in stores were likely cut and polished in this city. 

Dubai is also becoming a major centre for the diamond trade. Its 0% tax rate and location between African mines and Indian factories have helped it become a top trading hub for rough stones. Each city plays a different role in the "journey" of a diamond from the mine to the finger.

Conclusion

Antwerp is known as the Diamond Capital because it blends a long history with the latest technology. Cities like Surat and Dubai may process large numbers of diamonds, but Antwerp remains the main place where prices are set and quality is checked.

The city closely follows the Kimberley Process, so most diamonds traded there are conflict-free. Antwerp is more than a city. For over five centuries, it has set a global standard for trust, scientific accuracy, and exceptional craftsmanship.

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