The Top 10 Biggest Diamonds In The World

These legendary top 10 biggest diamonds in the world come in all shapes and sizes. While their prices are sure to be left to pure royalty, there is no limit to the amount of admiration and awe to be shared amongst everyone.

Take a look for yourself and see if you aren’t dazzled by these diamonds!

1. The Golden Jubilee

Weight: 545.67 carats or 109.13 g

Estimated Value: $8 – $12 million

Firmly holding onto its #1 spot, The Golden Jubilee is the largest known diamond in the world! This large brown diamond was discovered in 1985 in a premier mine in South Africa with the original total rough shape weight of 755.5 carats (151 g) which was later reshaped and resized. The first name originally given to this enormous diamond was simply, ‘Unnamed Brown’. In honor of King Bhumibol Adulyade’s 50th coronation anniversary, this brown diamond was presented to him as a gift during which, he renamed the brown diamond as ‘The Golden Jubilee’.

2. The Cullinan I

Weight: 530.4 carats or 106.1 g

Estimated Value: Over $400 million

Also commonly known as Star of Africa, the Cullinan I is the second largest diamond in the world. This pear shaped diamond measures 58.9 mm × 45.4 mm × 27.7 mm. It is called the Cullinan I since it was the largest of the 9 stones cut from the Cullinan Diamond which weighed 3106 carats when first discovered. The Cullinan Diamond was named after Thomas Cullinan (later Sir Thomas), who was a South African mine company owner.

3. The Incomparable

Weight: 407.48 carats

Estimated Value: $600,000

The Incomparable is the third largest diamond in the world, measuring in at 53.90 mm × 35.19 mm × 28.18 mm and was found in the town of Mbuji Mayi in the Democratic Republic of Congo (formerly Zaire) in the 1980s. This large rock was first discovered in its rough state weighing 890 carats, then reshaped and resized and finally adjusted into a ring. The cutting of the diamond was done by a the team of Marvin Samuels, who was the co-owner of the stone together along with Donald Zale of Zales Jewellers and Louis Glick.

4. The Cullinan II

Weight: 317.40 carats

Estimated Value: Unknown

Initially dismissed as a real diamond, the cushion-shaped Cullinan II is now the fourth largest diamond of the world. Discovered by mine manager, Fred Wells, this diamond rests in the center-front of the Imperial Stat Crown of Great Britain which had, at one time, belonged to Queen Elizabeth II of England. It was cut from the same rough diamond, the Cullinan, and fascinatingly, has two loops on either side to wear it as a broach or with the Cullinan I.

5. The Spirit of de Grisogono

Weight: 312.24 carats

Estimated Value: Unknown

Coming in as the fifth largest diamond in the world, the Spirit of de Grisogono is also the world’s largest cut black diamond, discovered in West Central Africa. This deep, dark diamond’s original rough weight was 587 carats but was later cut and resized.  It’s now fitted into a ring and is encrusted with 702 small white diamonds which have a total weight of 36.69 carats.

6. The Centenary

Weight: 273.85 carats

Estimated Value: Unknown

The Centenary, discovered on 17th July 1986, is the sixth largest diamond of the world and has an almost heart-shaped appearance. This perfect coloured diamond was found at the premier mine by the electric X-ray recovery system at the Premier Mine and those who were a part of it were sworn to secrecy. The rough shape weight of this diamond was 599 carats with 247 facets, measuring in at 39.90mm × 50.50mm × 24.55 mm. It has since been reshaped and resized.

7. The Jubilee

Weight: 245.35 carats

Estimated Value: Unknown, although, in 1900, its estimated value was 7,000,000 francs.

The seventh largest diamond in the world is the colourless, cushion-shaped Jubilee. Discovered in 1895 in the Jagersfontein Mine located in South Africa, it was sent to Amsterdam where it was polished by M.B. Barends. The previous name given to original diamond before it was cleaved was the Reitz in honour of the then president of the Orange Free State, Francis William Reitz. After a 40 carat slab was separated from the original 650.80 carats of rough diamond, the remaining piece was polished, renamed as the Jubilee and destined to be sent to Queen Victoria. The Jubilee is now located in the Royal Thai Palace and is fixed into the crown along with other expensive and popular jewels.

8. The De Beers

Weight: 234.65 carats

Estimated Value: Would be valued $20 – $30 million if found again

The De Beers is the eighth largest diamond in the world and was discovered in the Kimberly mines located in South Africa in 1888. Before being resized and reshaped this amazing diamond weighed 428.50 carats. It was bought by the Maharaja of Patiala and then fitted into a necklace which was named the Patiala Necklace. In 1978, after being loaned to an event in Israel, the famous necklace went missing until it turned up later at a second-hand jewellery shop in London in 1998 – without the De Beers diamond. This light yellow diamond has yet to be found and until that day arrives, De Beers allowed Cartier to restore a cubic zirconium look-a-like to replace its spot on the Patiala Necklace.

9. The Red Cross

Weight: 205.07

Estimated Value: £2 million

The Red Cross is the ninth largest diamond of the world weighing 205.07 was also discovered in the Kimberly mines, South Africa but at a later date in 1901. There are two extremely significant features that make this canary yellow diamond so valuable and unique. The first rare feature is that after exposure to brilliant light, it emits those rays becoming self-luminous in the dark. Even more intriguing is its second rare feature: The Maltese Cross distinctly visible in the top facet, hence its name, the Red Cross.

10. The Millennium Star

Weight: 203.04 carats

Estimated Value: While the estimated value is kept private, it was insured by De Beers Chairman, Nicky Oppenheimer, for £100 million

Although it’s the last of the Top 10 List, the Millennium Star diamond is definitely not the least and is in fact, the second largest faceted D-Flawless diamond in the world. Discovered in Zaire in 1990, this clear blue coloured stone weighed 777 carats in its rough state and was considered to be a magical number. What makes this diamond extremely exceptional is that it is externally flawless without a single scratch or burn marks on any of the facets.

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