The 10 most expensive diamonds on the planet

10. Archduke Joseph Diamond - 21.5 million USD

The Archduke Joseph diamond was discovered in one of the oldest diamond mines in the world in the Golconda region in India.

The Archduke Joseph diamond weighing 76 carats (about 15.2 grams) was sold at Christie's Geneva Magnificent Jewels auction for $21.5 million.

9. Perfect Pink Diamonds - 23 million USD

The Perfect Pink diamond weighing 14.23 carats (about 2,846 grams) was sold at Christie's auction in Hong Kong for $23 million.

8. Wittelsbach-Graff Diamond - 24.3 million USD

The Wittelsbach-Graff diamond weighs about 31.06 carats (about 6,212 grams) and costs $24.3 million. This is jewelry for aristocrats and royalty.

In the 17th century, Spanish King Phillip IV chose the Wittelsbach-Graff diamond as part of his daughter's dowry.

In 2008, Laurence Graff, a British jeweler, bought this diamond, then called der Blaue Wittelsbach. After that, Graff rented a diamond sharpener, removed all impurities and named it Wittelsbach-Graff.

7. Steinmetz Pink Diamond - 25 million USD

Steinmetz Pink is the purest and finest pink diamond in the world,

Steinmetz Pink was discovered in South Africa, weighed 59.60 carats (about 11.92 grams) and took a team of 8 workers nearly 20 months to complete.

6. Princie Diamond - 40 million USD

The Princie diamond is famous for its rarity, classified as Fancy Intense Pink. This diamond was discovered at the ancient Golconda diamond mine in South Central India, weighing 34.65 carats (about 6.93 grams).

5. Graff Pink Diamond - 46 million USD

Graff Pink reaches a weight of 24.78 carats (about 4.95 grams), completely free of impurities, nitrogen, fluorescence,. classified as Type IIa.

4. De Beers Centenary Diamond - 100 million USD

The De Beers Centenary diamond is completely flawless and colorless, discovered in a mine in South Africa in 1986. In rough form, the De Beers Centenary weighs 599 carats. In February 1991, De Beers Centenary appeared in heart shape, with a weight of 273.85 carats.

The current owner of De Beers Centenary is a mystery.

3. Hope Diamond - 350 million USD

The Hope Diamond is known as the 'Blue Diamond of the Crown'.

Hope is purple-blue in color, weighs 45.52 carats (about 9.104 grams) and is one of the most famous diamonds in the world.

2. Cullinan Diamond - 400 million USD

Cullinan, a pear-shaped diamond with a super weight of about 530.2 carats (106.4 grams).

The Cullinan was mined in South Africa in 1905, with an initial weight of 3,106 carats, considered the largest rough diamond in history. However, later, The Cullinan was divided into 105 gems with different cuts and weights. The largest of them, called the Cullinan I, weighed 530.20 carats.

1. Koh-I-Noor Diamond - Priceless

 The Koh-I-Noor weighs 105 carats (about 21 grams) and was once considered one of the largest diamonds in the world.

According to legend, Koh-I-Noor was born before Jesus was born. Some experts hypothesize that Koh-I-Noor first appeared in the early 1300s.

After many centuries of passing through different owners, from the 19th century Koh-i-Noor belonged to the British royal family, and was used to adorn the crown of the late Queen Elizabeth.

The last time Koh-i-Noor appeared in public was in 2002.

The value of this diamond is priceless because it cannot be weighed or measured.