Top 10 Most Expensive Diamonds in the World

Diamonds are one of the most popular and sought-after jewels in the world. With a variety of shapes, colors, and sizes in existence, every diamond is unique.

If you are considering selling your diamond or simply interested in record-breaking diamond sales, we have put together a list of the top 10 most expensive diamonds in the world for you.

Most Expensive Diamonds in the World

  • Koh-I-Noor- Priceless

Some things are meant to be priceless. Koh-I-Noor is one of the finest pieces of diamonds that was ever found in the Earth’s core. Koh-I-Noor itself means the ‘Mountain of Light’ in Persian.

It was once the largest diamond known in the world and is 105 carats weighing 21.6 grams. Koh-I-Noor originated In Andhra Pradesh (India) at Golconda.

This diamond was owned by the Sikhs, Mughals, and Persian rulers who fought with each other throughout the ages.

This stone measured 36.00 x 31.90 x 13.04mm. The British took it to London during their terrain in India. It is now the center of tourist attraction in the HM Tower of London (United Kingdom).

  • The Sancy Diamond- Priceless

Another priceless diamond is the Sancy Diamond which is 55.23 carats and weighs 11.05 grams. It is pale yellow in color and once belonged to the Great Moguls.

Many believe that this diamond is of Indian origin. It was the first large diamond that was cut with symmetrical facets. It is an unusual stone having no pavilion, but just a pair of crowns, one on the other. This diamond is now kept at Louvre in the French Crown Jewel Collection.

  • The Cullinan- $400 Million

It is the largest rough gem-quality diamond in the world that was ever found and is 3106.75 carats and weighs 621.35 grams. It was discovered on 26 January 1905 in Premier Mine Number 2 (Cullinan).

It got its name after the name of Thomas Cullinan, who was the mine chairman. It was cut into several polished gems and was gifted to King Edward on his 66th birthday. The Great Star of Africa or Cullinan 1 was the largest clear-cut piece of this diamond is of 530.4 carats and weighing 106.08 grams.

  • The Hope Diamond- $350 Million

One of the most famous jewels of the world, the Hope Diamond weighs 45.52 carats (9.10 grams). It looks blue in color because of the traces of boron present in the diamond.

It shines like a red phosphor under UV (Ultraviolet) rays. It was purchased by Harry Winston of New York in 1949 and finally, he gave it to the National Museum of Natural History in 1959. It is currently displayed in a museum in Washington (USA).

  • De Beers Centenary Diamond- $100 Million

With the highest color grade (D- colorless) and flawless both internally and externally the Centenary Diamond is the third largest diamond ever produced in a Premier Mine.

It was discovered using an X-Ray Imaging system on 17 July 1986. The original diamond weighed around 599 carats (119.6 grams). After being cut, it weighs 273.85 carats (54.77 grams).

  • The Steinmetz Pink- $25 Million

Steinmetz’s Pink diamond, also called the Pink Star, is a vivid pink diamond. It is the largest diamond known giving the Fancy Vivid Pink color.

It weighs 59.60 carats (11.92 grams). After many many auctions and owners, Chow Tai Fook Enterprises now holds this diamond as of April 3, 2017. Earlier, the diamond had also been displayed at the Smithsonian’s ‘The Splendor of Diamonds’ exhibition.

  • Wittelsbach Graff Diamond- $16.4 Million

The diamond originated from Kollur Mines of Andhra Pradesh in the Guntur district (India). It is a deep blue diamond and is internally flawless weighing 31.06 carats (6.212 grams).

It was purchased in by Laurence Graff in 2008. After selling the diamonds, Wittelsbach received $16.4 million from Graff. Earlier the diamond weighed 35.56 carats, but Graff decided to cut the diamond to remove deformities from it. It was reshaped and weight 31.06 carats.

  • The Heart of Eternity- $16 Million

The Heart of Eternity Diamond weighs 27.64 carats (5.528 grams). It was cut by the Steinmetz group before selling it to the De Beers group.

It is a member of extremely rare class diamonds and was found in the Premier Mines of South Africa. It has a Fancy Vivid Blue color. It has now been sold to an anonymous person, and De Beers has refused to name the person.

  • The Moussaieff Red Diamond- $7 Million

The Moussaieff Red Diamond, formerly known as Red Shield Diamond weighs 5.11 carats (1.022 grams). It is the largest read colored diamond in the world and the rarest of all.

It was discovered by a Brazilian farmer back in the 1990s in the Abaetezinho River. It has a Fancy vivid red color with an excellent triangular cut. It is presently owned by Moussaieff Jewellers Limited.

  • The Allnatt Diamond- $3 Million

It is a vivid yellow-colored diamond weighing 101.29 carats (20.258 grams) with a cushion cut. This diamond is named after its holder Alfred Ernest Allnatt. Allnatt sold this diamond in auctions in Geneva in the year 1996.

At that time the diamond weighed 102.07 carats and was Fancy Intense yellow. After the diamond was sold to the SIBA Corporation, it was re-cut to add more intensity to the diamond and now weighed 101.29 carats.

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