List of Top 10 Most Expensive Diamonds in the World

The list of the top 10 most expensive diamonds in the world is both fascinating and showcases the rarity and beauty of these natural wonders. These diamonds not only captivate with their sheer brilliance but also carry historical and cultural significance, making them some of the most sought-after gemstones in the world.

The top 10 most expensive diamonds in the World are The Cullinan Diamond, Graff Lesedi La Rona, Debswana, Star of Sierra Leone, Excelsior Diamond, Constellation, Koh-i-Noor, Millennium Star, The Hope Diamond, The De Beers Centenary Diamond.

In this article, we have provided the list of the top 10 most expensive diamonds in the world, their carat, and notable features.

Top 10 Most Expensive Diamonds in the World

The top 10 most expensive diamonds in the World are listed in the table shown below:

Rank	Diamond Name	Carat	Estimated Value (USD)	Notable Features
1	The Cullinan Diamond	3,106.75	Part of the Crown Jewels	Largest rough gem-quality diamond
2	Graff Lesedi La Rona	302.37	Largest square emerald cut	Discovered in Botswana
3	Debswana	1,098	Discovered in Botswana	One of the largest found
4	Star of Sierra Leone	968.9	Purchased by Harry Winston	Found on Valentine’s Day 1972
5	Excelsior Diamond	995.2	Once considered the largest diamond	Discovered in 1893
6	Constellation	313 (from 813 rough)	Purchased for a record-breaking USD 63.1 million	Mined in Botswana
7	Koh-i-Noor	Originally 793, now 186 (cut)	Part of the British Crown Jewels	Historical significance
8	Millennium Star	777 (rough)	Not provided	Notably flawless
9	The Hope Diamond	Not provided in the snippet, known to be 45.52	Up to $350 Million	Famous blue diamond, part of the Smithsonian collection
10	The De Beers Centenary Diamond	273.85	Between $90 and $100 million	Among the largest top-color diamonds

1. Cullinan Diamond

Originally weighed about 3,106 carats in its rough state, making it the largest rough diamond ever discovered. It was found in South Africa in 1905 and was later cut into several stones, the largest two of which are part of the British Crown Jewels.

2. Hope Diamond

A deep-blue diamond weighing approximately 45.52 carats, renowned for its supposedly cursed history. It originated in India and is currently housed in the Smithsonian Museum in Washington, D.C.

3. Koh-i-Noor

Meaning “Mountain of Light” in Persian, this diamond has a long history dating back to the early 14th century. It was once considered the largest known diamond. The British acquired it in the mid-19th century, and it’s now part of the British Crown Jewels.

4. Pink Star

Weighing 59.60 carats, the Pink Star is one of the most expensive diamonds ever sold at auction, fetching $71.2 million in 2017. It was mined in Africa in 1999.

5. Centenary Diamond

Discovered in the Premier Mine in 1986, this flawless diamond weighs 273.85 carats. It is known for its exceptional clarity and was unveiled in its final form in 1991.

6. The Graff Pink

A rare 24.78 carat pink diamond, it was sold at auction for $46 million in 2010, making it one of the most expensive diamonds ever sold at the time.

7. Wittelsbach-Graff Diamon

A 31.06-carat deep-blue diamond that has a history dating back to the 17th century. It was sold for $24.3 million in 2008 and later recut, sparking controversy among historians and gemologists.

8. The Blue Moon of Josephine

A 12.03-carat blue diamond that sold for $48.5 million in 2015, setting a record for the highest price per carat for any diamond sold at auction.

9. The Archduke Joseph Diamond

A colorless, antique cushion-shaped diamond weighing 76.45 carats, it has a long history within the Hungarian aristocracy. It was sold for $21.5 million in 2012.

10. The Regent Diamond

Discovered in 1698, this 140.64-carat diamond is known for its flawless clarity and beautiful cushion cut. It has adorned the crowns of Louis XV and Louis XVI, and it currently resides in the Louvre in Paris.

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