Famous Diamonds That Changed the World: The Complete Encyclopedia

In 1476, a Flemish goldsmith named Lodewyk van Bercken invented the scaif: a rotating polishing wheel infused with olive oil and diamond dust that made it possible, for the first time, to shape a diamond with true precision. He worked within Antwerp's Spanish city walls — the fortifications that once ran roughly where the modern boulevard now does. The trade never left Antwerp; it simply shifted, centuries later, to the modern diamond district around the Pelikaanstraat, which only emerged outside those old walls. Every faceted diamond that has been cut in the five centuries since — every stone on this page, without exception — was shaped by a tool that descends directly from Van Bercken's wheel.

Four hundred years later, in 1919, a young mathematician from an Antwerp diamond family named Marcel Tolkowsky published his doctoral thesis at the University of London. In it, he calculated the exact angles and proportions at which a round diamond would return the maximum amount of light through its crown — the "ideal cut" that defines the modern round brilliant. His formulas are still the reference standard used by GIA and every major grading laboratory in 2026.

The Tolkowsky family kept cutting. Marcel's nephew, Gabi Tolkowsky, was chosen by De Beers in the late twentieth century to cut three of the most important stones ever entrusted to a single artisan: the Centenary Diamond, the Golden Jubilee, and the team that worked on the Millennium Star. When you follow the biographies of the world's most famous diamonds, you follow a Flemish thread: from Van Bercken's wheel in 1476, through Amsterdam's satellite cutting houses (which trained in Antwerp), through Tolkowsky's mathematics, through the master cutters still working in the Pelikaanstraat district in 2026.

Every stone below is a chapter in that story.

Frederick Wells, 1905. Via Wikimedia Commons, CC BY-SA 4.0

On 26 January 1905, a mine superintendent at the Premier Mine in South Africa spotted something reflecting his lantern in the wall of the pit. He assumed at first it was a piece of glass placed there as a joke. What he had found was a rough diamond of 3,106 carats — 621 grams — larger than any diamond ever recorded, and a size still unmatched more than a century later.

It was named after Thomas Cullinan, the mine's owner, and purchased by the Transvaal government for £150,000 to be presented to King Edward VII on his sixty-sixth birthday. The transport itself became legend: a decoy stone was placed on a heavily guarded Royal Navy warship, while the actual Cullinan travelled from South Africa to London by ordinary registered mail. The full first-hand account of the discovery and cutting is preserved in the 1908 monograph "The Cullinan Diamond", published shortly after the cleaving.

The cutting was entrusted to Joseph Asscher in Amsterdam — a cousin operation to the Antwerp trade, trained in the same Flemish tradition Van Bercken had founded. Asscher studied the stone for eight months before making the first cleaving blow. When he finally struck, his hammer broke and he fainted. On the second attempt, the diamond split exactly as he had planned. The British Royal Collection Trust keeps the definitive record of the cutting process and the fate of each of the nine principal stones that emerged.

From the rough came 105 finished stones, including the nine major "Cullinan" diamonds. Cullinan I — the Great Star of Africa, 530.4 carats, pear-shaped — remains the largest colourless cut diamond in the world and sits in the Sovereign's Sceptre with Cross in the British Crown Jewels. Cullinan II sits in the Imperial State Crown. The remainder is distributed among the personal jewellery of the British royal family — an inventory that traces the entire modern history of British royal jewellery.

Photo: David Bjorgen. Via Wikimedia Commons, CC BY-SA 3.0

Weighing 45.52 carats and coloured a deep grayish-blue that shifts under different light, the Hope Diamond has been drawing crowds for four centuries. Its unusual colour comes from trace amounts of boron in its crystal structure — a chemistry so rare that it produces perhaps one such stone in every ten million.

The stone was extracted from the Kollur Mine in India in the seventeenth century and sold to French traveller Jean-Baptiste Tavernier, who brought it to Paris and sold it to Louis XIV in 1668. Then weighing 115 carats and known as the "Tavernier Blue," it was recut for the Sun King into a heart-shaped 67-carat gem called the "French Blue." That version survived until the French Revolution, when the crown jewels were looted in 1792. The stone disappeared for twenty years. The Smithsonian Magazine's 2025 account traces every step of the diamond's journey through the French court and beyond.

It reappeared in London in 1812, recut to its present 45 carats — small enough to be unrecognisable, but the chemistry gave it away. It passed through the hands of King George IV of Britain, then Henry Philip Hope, a banker whose family name stuck. From there it moved through so many owners who suffered financial ruin, illness, or violent death that the legend of a curse attached itself to the stone by the late nineteenth century — a story mostly invented by a Washington Post journalist in 1908, but too irresistible to ever fully dismiss.

Harry Winston bought it in 1949 and donated it to the Smithsonian in 1958. According to the Smithsonian Institution's own records, Winston sent it from New York City in a plain brown package by registered mail, insured for one million dollars, for a postage cost of $2.44. Today it sits in Washington in the Harry Winston Gallery, rotating in a specially constructed glass vault under fibre-optic lighting, valued between $200 million and $350 million, and remains one of the most-visited museum objects in the world.

Photo: Chris 73. Via Wikimedia Commons, CC BY 2.0. Replica shown.

The Koh-i-Noor — "Mountain of Light" in Persian — is the diamond over which more governments have quarrelled than any other. It weighs 105.6 carats today, but is believed to have originally exceeded 186 carats when it emerged from the Golconda mines of southern India, perhaps as early as the thirteenth century.

Its recorded history reads like a summary of six centuries of South Asian conflict. It was seized by successive Mughal emperors, taken by the Persian conqueror Nadir Shah in 1739, passed to Afghan rulers, and finally into the treasury of the Sikh Empire under Ranjit Singh. In 1849, following the British annexation of the Punjab, the ten-year-old Maharaja Duleep Singh was compelled to surrender the stone as part of the Treaty of Lahore. It was presented to Queen Victoria the following year.

Prince Albert was unimpressed by the stone's original Indian cut, which he judged insufficiently brilliant, and ordered it recut. Two Dutch cutters, Voorsanger and Fedder — trained in Amsterdam's Flemish-tradition workshops descended from Van Bercken's original Antwerp lineage — reduced it from 186 to 105 carats over thirty-eight days of continuous work. The remaining stone was set into Queen Alexandra's crown, then Queen Mary's, and finally into the Crown of Queen Elizabeth the Queen Mother, in which it rests today.

The Koh-i-Noor now sits in the Jewel House at the Tower of London, described by Historic Royal Palaces as "a symbol of conquest" with a turbulent journey through Mughal Emperors, Shahs of Iran, Emirs of Afghanistan, and Sikh Maharajahs. It is the subject of active repatriation claims from India, Pakistan, Iran, and Afghanistan — each nation invoking a different chapter of the stone's tangled history. It is the diamond that most clearly shows how a single gem can carry the weight of empire.

The Regent is the diamond that best illustrates how much value a single cutter can add. When it emerged from the Kollur Mine in 1698 — reputedly hidden by an Indian slave inside a wound in his leg — it weighed over 400 rough carats. It was sold to Thomas Pitt, then Governor of Madras and grandfather of William Pitt the Elder, who shipped it to London.

In London, an English cutter named Harris spent two years, from 1704 to 1706, shaping the stone into a 140.64-carat cushion cut of extraordinary purity. The cutting reduced the rough by nearly two-thirds — but the finished stone was so exceptional that Pitt was able to sell it in 1717 to Philippe II, Duke of Orléans, Regent of France, for a sum that would today translate into hundreds of millions of euros. The name has stuck ever since. The Louvre's own catalogue entry describes it as "still considered the most beautiful diamond in the world by its purity and the quality of its cut."

The Regent was set into the crown of Louis XV for his coronation in 1722, into Marie Antoinette's black velvet hat, and — most famously — into the pommel of Napoleon Bonaparte's ceremonial sword, where it symbolised imperial legitimacy during his 1804 coronation. It was briefly stolen during the French Revolution, hidden in an attic in a Paris garret, and recovered. During the Second World War it survived again, hidden behind a marble fireplace at Château de Chambord.

For most of the last 150 years, the Regent has been on public display in the Apollo Gallery of the Louvre. Following the Louvre's 2020 redisplay of the surviving French Crown Jewels and — more recently — the security review that followed the October 2025 Apollo Gallery theft, the Regent has been temporarily moved to the Banque de France while a new, more secure gallery is prepared elsewhere in the museum. Of all the diamonds on this list, it remains the one experts most consistently name as the most beautifully cut ever produced — a testament to what two years of patient work by a single artisan can achieve.

Photo credit: Wikimedia Commons, file page, CC BY 3.0

The Sancy is one of the oldest diamonds in Europe with a continuously documented history. It weighs 55.23 carats, is cut in an unusual shield shape with facets on both sides — a style that predates the modern brilliant cut by nearly two centuries — and has a pale yellow tint that gives it a distinctive warm glow. The Louvre's official catalogue entry traces the stone back to before 1570 and confirms its Indian origin.

It first appears in the historical record in the possession of Charles the Bold, Duke of Burgundy, who reportedly wore it into the Battle of Nancy in 1477. He lost both the battle and his life, and legend has it that the stone was picked up from the battlefield by a common soldier who sold it for a single florin — one of the great bargain purchases in gem history. Whether that story is entirely true or not, the diamond soon reappeared in the treasuries of European nobility.

Over the following centuries the Sancy passed through the hands of the King of Portugal, French finance minister Nicolas de Harlay, seigneur de Sancy (whose name it inherited in the 1590s), Queen Elizabeth I of England, King James I, and Cardinal Mazarin, who bequeathed it to the French Crown in 1661 as one of the eighteen Mazarin diamonds. It was set at the top of the crown of Louis XV for his coronation in 1722. It was stolen during the French Revolution — the same 1792 raid on the Garde-Meuble that took the French Blue — and disappeared for decades before resurfacing in the hands of the Demidoff family of Russia, then the Astor family of England.

The Sancy returned to France in 1978 when the Louvre acquired it from the Astor family for one million dollars. Like the Regent, it has been part of the Louvre's 2020 redisplay of the French Crown Jewels in the Apollo Gallery, and — following the October 2025 theft that struck other pieces of the collection — has been temporarily moved to the Banque de France while a new secure gallery is prepared. Five hundred years of European history compressed into a stone that weighs eleven grams.

Artistic impression — actual photographs of the Pink Star are proprietary to Sotheby's press archive.

The Pink Star holds the record. On 4 April 2017, in a five-minute bidding war at Sotheby's Hong Kong, it sold for $71.2 million — the highest price ever paid for any diamond, coloured or colourless, in a public auction. The stone weighs 59.60 carats, is graded Fancy Vivid Pink by the Gemological Institute of America, and is internally flawless.

The rough was mined by De Beers in southern Africa in 1999 and weighed 132.5 carats — meaning more than half its mass was cut away to achieve its final oval-cushion mixed-cut form. The cutting was done by the Steinmetz Diamond Group over two years of continuous work by a team of specialists, some of whom trained in Antwerp before joining Steinmetz's international operation. It was originally unveiled as "The Steinmetz Pink" at Monaco in 2003.

The reason for the record price lies in the mathematics of coloured diamond rarity. Fancy Vivid Pink is the highest saturation grade the GIA awards for pink diamonds — a category to which perhaps one in every ten million natural diamonds qualifies. And pink diamonds above 10 carats are almost never seen at auction. A 59-carat Vivid Pink is, in geological terms, a once-per-generation object. The Pink Star had already been through the auction ring once before: in November 2013 at Sotheby's Geneva, a New York diamond cutter bid $83 million and then defaulted on payment, leaving Sotheby's holding the stone for four years until the 2017 Hong Kong sale.

The winning bid in Hong Kong came from Henry Cheng Kar-Shun, chairman of Chow Tai Fook Enterprises, the Hong Kong jewellery conglomerate, who phoned in the offer and renamed the stone the "CTF Pink Star" in honour of his late father, the company's founder. It has not been publicly displayed since — a reminder that most of the world's greatest diamonds spend most of their lives out of view, moving quietly between private vaults, insurance schedules, and generational estates.

Artistic impression — actual photographs of the Blue Moon of Josephine are proprietary to Sotheby's press archive.

In January 2014, a piece of blue-tinted rough weighing 29.6 carats was extracted from the Cullinan Mine in South Africa — the same mine that had produced the original Cullinan Diamond 109 years earlier. Petra Diamonds, the mine's current operator, sold the rough to Cora International in New York for $25.6 million, at that point the highest price ever paid for a piece of rough diamond.

Cora spent six months cutting the stone into a 12.03-carat cushion — graded Fancy Vivid Blue, internally flawless, and Type IIb, the boron-containing category to which the Hope Diamond also belongs. Cushion-cut blue diamonds of this saturation are extraordinarily rare: the GIA had only ever awarded the top "Vivid" grade to a handful of blue stones in its entire history.

Sotheby's Geneva put it up for auction on 11 November 2015 with a pre-sale estimate of $35–55 million. The final hammer price was $48.5 million, or roughly $4 million per carat — the highest per-carat price ever achieved by any diamond at auction, a record that still stands. The buyer, identified afterwards as Hong Kong property tycoon Joseph Lau, phoned in the winning bid and renamed the stone in honour of his seven-year-old daughter Josephine on the spot.

The story doesn't end there. Only the day before, at rival Christie's Geneva, Lau had bought a second historic diamond — a 16.08-carat vivid pink — for $28.5 million and named that one "Sweet Josephine" for the same daughter. Two record-breaking coloured diamonds, bought two days apart, both named after the same seven-year-old, both by a single collector. The record-per-carat that the Blue Moon set for coloured diamonds stood until the Pink Star surpassed the aggregate record for total price in 2017. In terms of pure geological improbability, however, the Blue Moon of Josephine is arguably the most extraordinary single stone bought and sold this century.

Artistic impression — actual photographs of the Taylor-Burton Diamond are proprietary to Cartier and celebrity press archives.

The Taylor-Burton is the diamond that turned a private stone into public spectacle. It began as a 241-carat rough discovered at South Africa's Premier Mine in 1966, and was cut by Harry Winston's master cleaver Pastor Colón Jr. — who studied the stone for six months before making the first cleaving blow — into a 69.42-carat pear-shaped D-colour flawless brilliant. It was one of the largest pear-shaped diamonds ever offered publicly.

On 23 October 1969, the stone went to auction at Parke-Bernet Galleries in New York. Two bidders competed openly. One was Cartier. The other was actor Richard Burton, who had authorised his London lawyer, Aaron Frosch, to bid up to one million dollars for the stone as a gift for his wife, Elizabeth Taylor. Also in the room were Harry Winston himself, Greek shipping magnate Aristotle Onassis, and the Sultan of Brunei — all reportedly interested. Cartier won at $1,050,000, then a record for any publicly sold jewel.

Within twenty-four hours, Burton had negotiated directly with Cartier and bought the diamond back at approximately $1.1 million — a $50,000 profit for the auction house, on the condition that Cartier could exhibit the stone publicly first. According to Francesca Cartier Brickell's family historical archive, the diamond was displayed at Cartier's 653 Fifth Avenue mansion, where an estimated 6,000 people queued each day to see it. Then it was flown to Chicago for a second exhibition. Finally, Cartier delivered it to the Burtons on a yacht off Monaco, escorted by armed guards.

Taylor initially had the diamond set as a ring, but at 69 carats it was too heavy for daily wear. She commissioned Cartier to design a necklace instead — reputedly so the pendant could sit across a tracheotomy scar from her 1961 illness. She first wore it publicly at Princess Grace of Monaco's 40th birthday on 12 November 1969, and again at the 42nd Academy Awards. A Lloyd's of London insurance policy stipulated she could wear the diamond publicly no more than thirty days per year, and always with armed guards. Taylor eventually sold the stone in 1978 for approximately $3 million to jeweller Henry Lambert, who onsold it to an anonymous buyer in Saudi Arabia — where it has quietly remained ever since. The Taylor-Burton is not the largest or most valuable stone on this list, but it is arguably the most famous — the first celebrity diamond in the modern sense, and the template Hollywood, jewellery, and public spectacle have followed ever since.

Artistic impression — actual photographs of the Wittelsbach-Graff Diamond are proprietary to Graff Diamonds and Christie's press archives.

The Wittelsbach-Graff is the diamond that split the modern trade in two. It began four centuries ago at the Kollur Mine in India's Golconda region — the same alluvial fields that produced the Hope Diamond — where miners in the mid-1600s unearthed an extraordinary blue crystal. Cut into a 35.56-carat cushion of Fancy Deep Grayish Blue, it entered European royal treasuries as part of the dowry of the Spanish Infanta Margarita Teresa, and eventually became a fixture of both the Austrian and Bavarian Crown Jewels, worn by generations of Habsburg and Wittelsbach monarchs.

The diamond then vanished. It disappeared from a 1931 Christie's sale of the Bavarian Crown Jewels in unexplained circumstances — replaced, according to Smithsonian records, by a piece of cut blue glass. For twenty years the actual stone was lost. It resurfaced in Belgium in 1951 and was displayed, unnamed and unrecognised, at the World Exhibition in Brussels in 1958. It was finally correctly identified in 1962 by Joseph Komkommer, a Belgian gem expert working in Antwerp — one more chapter in the long Flemish involvement with every important diamond in Europe.

On 10 December 2008, the Wittelsbach was offered publicly for the first time in eighty years at Christie's London. Pre-sale estimates hovered around $15 million. The hammer fell at $24.3 million — then the highest price ever paid for any diamond at auction. The buyer was Laurence Graff, the London-based diamantaire. What Graff did next divided the diamond world. In 2010 he had the stone recut by three diamond cutters, reducing it from 35.56 to 31.06 carats to remove chips, wear marks, and an oversized culet — and to improve the colour grade. The Gemological Institute of America regraded the recut stone as Internally Flawless, Fancy Deep Blue, and the largest such stone the GIA had ever certified.

The reaction was fierce. Sotheby's jewellery specialist Daniela Mascetti told the international press that provenance in gems mattered "in ways that are not true of other things." Gabriel Tolkowsky — the Antwerp cutter who had shaped the Centenary and Golden Jubilee for De Beers — called the recut "the end of culture." Graff was unrepentant. "To create beauty, or acts of beauty, is not a sin. All we did was remove the blemishes and now it's true perfection." The recut Wittelsbach-Graff was displayed at the Smithsonian in 2010 alongside the Hope Diamond — the first time two blue diamonds of that stature had ever been exhibited together — before being sold in 2011 to Sheikh Hamad bin Khalifa Al Thani, Father Emir of Qatar, for a reported $80 million. It has not been publicly displayed since.

The Dresden Green is the only large natural green diamond ever discovered. It weighs 41 carats, is pear-shaped, and displays a distinctive apple-green colour that comes not from any chemical impurity but from millions of years of exposure to natural radioactivity deep in the earth — a geological accident so specific that the world has never produced a second stone quite like it.

Its origin, like almost every European historical diamond, is Indian. It emerged from the alluvial fields of the Golconda region — the same district that produced the Hope Diamond, the Koh-i-Noor, the Regent, and the Wittelsbach — and reached Europe sometime in the early eighteenth century by routes that have never been fully documented. What is certain is that the diamond was purchased at the Leipzig Easter Fair in 1742 by King Augustus III of Poland, who was also Elector of Saxony. He paid 400,000 thalers for it — an amount larger than the entire cost of building Dresden's Frauenkirche around the same time.

Augustus III had the diamond mounted in a spectacular hat ornament designed to be worn in ceremonial court appearances. That original setting survives today. When the Royal Palace was bombed on 13 February 1945 during the destruction of Dresden, the Grünes Gewölbe was reduced largely to rubble — but the diamond had been evacuated to the Königstein fortress and survived unharmed. It was then confiscated by the Red Army in 1946 and taken to Moscow as war reparations. It returned to Dresden only in 1958.

The Dresden Green sits today in the Watzdorf Cabinet of the Neues Grünes Gewölbe at the Residenzschloss Dresden, illuminated behind glass. In 2019 the diamond made an exceedingly rare journey abroad, travelling to New York for the "Making Marvels" exhibition at the Metropolitan Museum of Art — the first time it had left Germany in decades. In the same year, thieves broke into the Historic Green Vault next door and stole roughly a hundred royal jewellery pieces. The Dresden Green was unaffected — a different collection, a different building, and one of the most rigorously guarded gems in the world.

Artistic impression — actual photographs of the Golden Jubilee Diamond are proprietary to the Thai Royal Household and De Beers press archives.

Of all the diamonds on this list, the Golden Jubilee is the one this article has been quietly building towards. It weighs 545.67 carats, was cut in Antwerp, and is the largest faceted diamond in the world — surpassing even Cullinan I, the Great Star of Africa, by fifteen carats. And unlike almost every other stone on this page, we can say with certainty who cut it and where: Gabi Tolkowsky, in an underground vibration-free workshop in Antwerp, over more than two years of continuous work between 1988 and 1990.

The rough was discovered in 1985 at the Premier Mine in South Africa — the same mine that produced the original Cullinan Diamond in 1905. It weighed 755.5 carats, a fractured brown stone so full of internal inclusions that De Beers initially used it as a test vehicle for developing new cutting tools, not expecting the finished stone to become a gem in its own right. They handed it to Gabi Tolkowsky, the sixth-generation Antwerp cutter whose great-uncle Marcel had defined the modern round brilliant cut in 1919 — the same Tolkowsky family thread that runs through the entire history of European diamond cutting.

Tolkowsky worked on the stone alongside his son Jean-Paul in a specially built vibration-free underground workshop, using computer modelling and custom-engineered tools. The result was a fancy yellow-brown cushion cut with 148 facets arranged in what he called the "fire rose" pattern — a faceting scheme he designed specifically to maximise brilliance and colour play in a large brown stone. When it was finished in 1990, De Beers displayed it privately for years before deciding what to do with it.

In 1995, a group of Thai businessmen led by Henry Ho saw the diamond at Thailand's Board of Investment Fair and purchased it for approximately six million dollars — with the express intention of presenting it to their king. In 1997, they gave it to King Bhumibol Adulyadej to mark the 50th anniversary of his accession to the Thai throne — the celebration from which the stone took its name. The Golden Jubilee is now set into the Thai royal sceptre and forms part of the Crown Jewels of Thailand. When Gabi Tolkowsky died in May 2023, obituaries in every major diamond publication began with the same sentence: he was the man who cut the two largest and most important modern diamonds in history. Both were shaped in Antwerp.

Artistic impression — actual photographs of the Millennium Star Diamond are proprietary to De Beers press archives.

The Millennium Star closes this list where it began — with a stone so exceptional that its story became inseparable from the biggest attempted diamond heist in British history. It weighs 203.04 carats, is D-colour, internally and externally flawless, and pear-shaped. Only one flawless D-colour pear in the world is larger. On the day of its unveiling, gem experts described it as the most perfect large diamond ever cut in the modern era.

The rough was pulled from alluvial deposits in the Mbuji-Mayi district of what was then Zaire, now the Democratic Republic of Congo, in 1990. It weighed 777 carats — a number so large that De Beers negotiated the purchase during the height of the country's civil war, transporting the stone out of the region under conditions the company has never fully disclosed. De Beers then handed it to the Steinmetz Diamond Group (now Diacore), whose team spent more than three years shaping it using laser cutting technology developed specifically for the project. When they finished in 1999, the result was so pure that it became the centrepiece of De Beers' Millennium Jewels collection — displayed alongside eleven blue diamonds totalling 118 carats.

The collection was placed on public display at London's Millennium Dome throughout the year 2000. On the morning of 7 November 2000, a gang of experienced criminals used a JCB digger to smash through the Dome's wall, threw smoke grenades, and ran armed with sledgehammers and a nail gun towards the exhibition vault. What they did not know was that the Metropolitan Police's Flying Squad had been tracking them for months under "Operation Magician." The Millennium Dome raid was intercepted before a single diamond was touched. The Millennium Star and every blue diamond had been swapped for replicas the day before — a detail the raiders only discovered from their arresting officers. The full operation was the largest in the Flying Squad's history and prevented what would have been a £350 million theft. The story was chronicled in the 2025 Netflix documentary "The Diamond Heist."

The Millennium Star was sold quietly in 2006 to an anonymous buyer in Asia or the Middle East — the exact destination has never been disclosed. It has not been publicly displayed since. And that, perhaps, is the appropriate closing note for this encyclopedia. Of the twelve diamonds on this page, only two — the Hope and the Dresden Green — remain permanently on public view. The other ten have all disappeared into private vaults, royal treasuries, or bank strongrooms. The truly great diamonds spend most of their lives out of sight. It is the story of each stone's journey — where it came from, who cut it, whose hands it passed through, and which craft tradition shaped it — that gives them the weight they carry. And that story, as this article has quietly argued from beginning to end, runs through Antwerp.

Read together, the diamonds above are not just a collection of famous objects — they are twelve data points about what actually holds value in the diamond market over centuries. Three patterns emerge, and all three are relevant for anyone considering a natural diamond purchase in 2026.

First: provenance protects value across generations. The Hope, the Regent, the Sancy, and the Koh-i-Noor have all changed hands dozens of times since the seventeenth century. Wars, revolutions, thefts, and market crashes have swept over them. Every one of them is worth more today, in real terms, than it was a hundred years ago. A stone with a documented chain of ownership — a certificate, an auction record, a museum provenance — carries its value forward in ways that an anonymous diamond cannot.

Second: exceptional grade survives every fashion cycle. The five modern diamonds on this list — Pink Star, Blue Moon, Taylor-Burton, Wittelsbach-Graff, Millennium Star — all share the same grading profile: Fancy Vivid colour (or D-flawless colourless), Type IIa or IIb, internally flawless. That grade combination represents perhaps one diamond in ten million. The price for that specific corner of the market has doubled roughly every seven years since 2000, and shows no sign of slowing. Our 2026 market analysis tracks the same pattern across the certified natural diamond segment more broadly.

Third: cutting craftsmanship is the multiplier. The Regent doubled in value the moment Harris finished cutting it in 1706. The Cullinan created nine major stones of individual historical importance. The Wittelsbach recut divided the diamond world precisely because everyone recognised that cutting decisions permanently define what a stone can be. A well-cut natural diamond of certified grade will always command a premium over an identically graded stone with mediocre finishing. This is not a matter of opinion — it is what four hundred years of auction data record.

Every diamond dealer worth trusting will happily discuss these three factors with you before you look at a single stone.

The Flemish thread that runs through this encyclopedia is not a historical curiosity. It is a living tradition. The city where Lodewyk van Bercken built his first scaif in 1476 — then within Antwerp's Spanish walls — is still, five hundred years later, the world's most concentrated centre for the cutting, grading, and trading of natural certified diamonds, although the work has since moved outward to the modern diamond district around the Pelikaanstraat, beyond the line of the old fortifications.

Roughly 84% of all rough diamonds and 50% of all polished diamonds in the world still pass through Antwerp each year. The certified natural stones sold from this district today are shaped by cutters descended, professionally and often literally, from the same tradition that produced the Cullinan (via Amsterdam), the Golden Jubilee (Gabi Tolkowsky in Antwerp), and every ideal-cut round brilliant in the world (Marcel Tolkowsky's 1919 formulas).

At Diamantwerp we work only with natural certified diamonds sourced through Antwerp's Rapnet network — the same wholesale system that feeds every reputable jeweller from Cartier to Van Cleef. We are not affiliated with any of the famous stones on this page. But we sell the natural diamonds their story is built on: certified, cut to Tolkowsky standards, from the same district that has shaped every important stone of the last five centuries.

Explore our current selection of certified natural diamonds, or read our 2026 market analysis for the current state of the natural diamond market.