Most EXPENSIVE Diamonds In The World!

Gold Silver and Gemstone - Secret to Success
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14 Video Views·Aug 22, 2025
Explore the fascinating world of extraordinary diamonds, each renowned for its rarity, history, and immense value. From the deep blue hues of the Heart of Eternity to the fiery red brilliance of the Moussaieff Red Diamond, these gems captivate with their unique characteristics. The journey continues through the vibrant pinks of The Perfect Pink and Pink Star, the historical allure of the Wittelsbach and Oppenheimer Blue, and the monumental size of the Centenary Diamond.
From deep blues to stunning reds, here are 10 of the rarest and most expensive diamonds
in the world.
10.
The Heart of Eternity
The stone that was made into the Heart of Eternity diamond was found at the world's
largest supplier of blue diamonds, the South African Premier Diamond Mine.
Blue diamonds are incredibly rare, with on average only one being found every year, and
this one was an amazing find.
The rough stone was 777 carats when it was dug up, and the owners waited until they had
the perfect design idea before they started cutting it.
The result was the Millennium Blue Diamonds, a series of heart, pear drop, and oval-shaped
diamonds of which the Heart of Eternity is the largest.
In recent years, it has been on tour at various exhibitions, including at the Millennium
Exhibition in London in 2000, followed by the Smithsonian Museum.
The $16 million price tag is an estimate based on its size and color, but the finished
piece could be worth far more when you consider what a rare piece it is.
9.
The Moussaieff Red Diamond
Diamonds come in many colors, but red ones are particularly rare.
According to the Cape Town Diamond Museum, there have only been up to 30 true red diamonds
ever found, with most of them being less than half a carat.
A farmer in Brazil found the rough stone that was to become the Moussaieff Red Diamond
in the 90s.
At a weight of 13.9 carats, it immediately became the center of attention.
The William Goldberg Diamond Corporation from New York then bought it, and decided to cut
it into a triangular, brilliant cut.
This process would mean losing 8.79 carats, but the resulting cranberry-colored 5.11 carat
gem is simply stunning.
8.
When it sold for $23 million in 2010, the Perfect Pink Diamond was the most expensive
It was originally named the Red Shield, but was renamed by the Moussaieff Jewelers when
they purchased it for about $8 million at the turn of the century.
This diamond has regularly been to exhibitions, being shown alongside other ones in the Smithsonian.
Were it to be sold, it would be expected to cost at least $20 million today.
8.
The Perfect Pink
When it sold for $23 million in 2010, the Perfect Pink Diamond was the most expensive
jewel that had ever been sold in Asia.
It weighs 14.23 carats, is graded as Fancy Intense Pink, and is set in a rose and white
gold ring with rectangular-shaped diamonds on either side.
Pure pink diamonds of more than 10 carats are very unusual, with only 18 examples having
gone to auction in the past 244 years, none of which was classified as Intense Pink at
the time of sale.
This makes the Perfect Pink a truly unique piece, and explains why it sold for $10 million
more than had been expected.
7.
The Wittelsbach Diamond
The first records of the Wittelsbach Diamond came from back in the 17th century when it
was sold to Louis XIV of France.
It has a rare blue color and weighs 35.56 carats.
The stone has a royal history, having been passed down through families since the 1600s.
It went from France to Spain and over to Germany where it accompanied the German King Louis
III to his burial place in 1921.
At some point in the 30s, it was sold to raise money for the German government, and from
here things get mysterious.
No one seemed to know who had bought it, and it somehow got replaced with a piece of blue
glass in the museum.
Rumors of the actual diamond changing hands were rife in the following decades until 1962
when it reappeared at a jewelry store in Belgium.
It was sold in 2008 for $23.4 million and, to the dismay of diamond historians, the new
owner decided that it should be re-cut since it had originally been done in the early 1600s.
The resulting stone, now 21.06 carats, meant that both the color and quality were improved
and the estimated price skyrocketed.
6.
The Oppenheimer Blue Diamond
The Oppenheimer Blue Diamond broke records at the time in 2016 for being the most expensive
jewel that has ever been sold at auction, as well as the largest fancy vivid blue diamond
that has ever been offered for sale.
Named after its previous owner, Sir Philip Oppenheimer, the diamond weighs in at 14.62
carats and is set in a platinum ring with a trapeze-shaped diamond on either side.
Its clarity is graded as one step below internally flawless, which also helped it break the record
for the per carat price.
So remarkable is the color of this gem that it has been graded as fancy vivid, which is
a term used to describe diamonds that are medium to dark in tone and strong in saturation.
Only 1% of blue diamonds are fancy vivid, and with blue diamonds being unusual in the
first place, this one is truly one of a kind.
5.
The Pink Star
The Pink Star diamond went to auction in April of 2017, just last week at the time of this
video, and smashed its estimate of $60 million.
It sold for just over $71 million.
It became the most expensive diamond that has ever been sold, overtaking the Oppenheimer
blue diamond by over $13 million.
The pink diamond weighs an impressive 59.6 carats and is the largest internally flawless
fancy vivid pink diamond that has ever been graded by the Gemological Institute of America.
The original rough stone weighed 132.5 carats when it was mined by De Beers in Africa in
1999.
It took two years of planning, cutting, and polishing to make it into its current oval
shape, a process that shaved off over 70 carats.
The identity of the new owner of this beautiful piece is being kept a secret, but the sheer
size of it means it'll be tough to keep under wraps if they ever wear it out in public.
4.
The Centenary Diamond
The Centenary Diamond was discovered in De Beers' premier mine in 1986 with the assistance
of cutting-edge X-ray technology.
The rough stone weighed 599 carats, which makes it the third largest diamond to have
ever been found there, and it was graded as being internally and externally flawless.
It took 154 days for a specialist team to hand-cut the stone into this stunning modified
heart-shaped design.
They created a special underground room in Johannesburg which controlled the temperature
and vibrations to minimize the chances of any mistakes.
It was completed in 1991 with 247 facets, 164 of which are on its pavilion and crown,
and 83 on its girdle, and it ended up at a weight of 273.85 carats.
The diamond has been on display at the Tower of London for a number of years, but the true
owner is not actually known.
It has never been put up for sale in a public auction, so it's tough to estimate its
actual value, but at the time of unveiling in 1991, it was insured for $100 million.
3.
The Hope Diamond
The Hope Diamond is one of the most famous jewels in the world, having changed hands
between owners in India, France, England, and America in the past four centuries.
It has also become synonymous with bad luck and thought to be cursed.
The stone weighs 45.52 carats and is the largest deep blue diamond in the world.
The color is described as a magnificent sky blue and it emits a red glow.
The first records that mention it come from back in 1668 when King Louis XIV of France,
a renowned diamond collector, bought it.
It went missing a century later in the chaos surrounding the French Revolution and reappeared
in London in 1812.
After being sold on to various owners in the following years, it made its way over to America
when it was purchased by an American heiress named Evelyn Walsh McLean.
Wanting to make the diamond even more special, this is when it was put into its current setting,
surrounded by 16 white diamonds and hanging on a chain made with 45 diamonds.
There are numerous stories of owners beset by misfortune over the years.
The French merchant, who supposedly originally took the stone from the eye of a Hindu idol
in India and returned it to France where he sold it to the king, was apparently mauled
to death by dogs.
King Louis XVI and his wife Marie Antoinette were beheaded in the French Revolution and
Evelyn McLean had a miserable life after buying the diamond, with her son being killed in
a car crash, her daughter committing suicide, her husband leaving her for another woman,
and she herself ending up in an asylum.
The diamond was acquired by the Smithsonian Museum in 1958 where it remains, and despite
it never having been sold on the open market, to give an idea of its value, it is currently
thought to be insured for around $250 million.
It would be expected to go for even more than that if it ever was to be put up for sale.
The curse of the diamond, luckily, hasn't seemed to have affected the museum.
2.
Cullinan I
The Cullinan Diamonds, also known as the Star of Africa, all originate from one stone that
was found at the Premier Mine in South Africa and weighed a mighty 3,106.75 carats.
About 1,369 pounds.
At the time, this was twice the size of any other diamond that had ever been found anywhere.
It was named after the owner of the mine where it was found, Sir Thomas Cullinan, and was
soon given to the British King Edward VII as a token of the loyalty and attachment of
the people of Transvaal to his throne and person.
It was sent to the Asher Brothers of Amsterdam, who separated it into three segments, and
later was divided into nine large stones and 96 smaller fragments.
Of these cuts, the Cullinan I stone is by far the largest, most valuable, and most prestigious.
Often referred to as the Great Star of Africa, it weighs 530.2 carats and has been cut into
a pear shape.
If you have seen the British Crown Jewels, then this diamond might look familiar.
It's the one that is set in the head of the scepter with the cross.
It is also removable, so it can be worn separately.
While the Cullinan I has never been on public sale, it's thought to be worth in excess
of $400 million, with the entire Cullinan set being valued at over $2 billion.
1.
The Koh-i-Noor
This is another diamond that hasn't ever been available for public sale, but because
of its notoriety and history, this 105.6 carat diamond is a part of the British Crown Jewels.
It is also the largest diamond in the world, and it is believed to be worth over $1.5 billion.
The Simantaka Jewel is the largest diamond in the world, set in the crown of Queen Elizabeth.
It is only ever worn by women because it is thought to be unlucky for men.
There is much controversy surrounding this diamond as to its ownership.
Some think this diamond was first found by humans over 5,000 years ago, with it being
referred to as the Simantaka Jewel in Sanskrit writings, but the first confirmed record dates
back to 1526, when it was in the possession of the Indian conqueror Babur.
For the next 300 years, it regularly changed hands between various Indian and Persian leaders
as they fought each other, but was gifted to Queen Victoria in 1850 as a peace offering,
and has been a part of the Crown Jewels ever since.
The Indian authorities have long demanded the return of the diamond that they see as
having been stolen from them during colonial times.
The Brits reject these allegations, though, claiming that it was given to Queen Victoria
by an Indian king.
Unsurprisingly, this response has not satisfied those that think it should be returned, so
the dispute over its ownership continues.
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