What Is the Name of the Largest Diamond Ever Found?
The largest diamond ever found is the Cullinan Diamond, a breathtaking gem discovered in /{}/1908 at the Premier Mine in South Africa. That said, 20 grams), remains the heavyweight champion of natural diamonds and continues to captivate collectors, historians, and jewelry enthusiasts worldwide. This massive stone, weighing an astonishing 3,106 carats (621.Understanding the story behind this colossal gem involves exploring its discovery, cutting, historical significance, and current whereabouts, all of which contribute to its legendary status in the world of precious stones Simple, but easy to overlook..
Introduction
When people ask, “What is the name of the largest diamond ever found?And ” the answer is almost always the Cullinan Diamond. This monumental find not only broke records in size but also set new standards for diamond cutting and craftsmanship. Its legacy stretches across continents, touching the British Crown Jewels, private collections, and museum displays. The Cullinan’s journey from a rough, uncut crystal to a series of dazzling gems illustrates the intersection of geology, art, and royal tradition, making it a cornerstone topic for anyone fascinated by the world of gems.
The Cullinan Diamond: Discovery and Early History
The Cullinan was unearthed on January 25, 1908, by Frederick Wells, a mining official working for the De Beers company. While inspecting the Premier Mine—also known as the Cullinan Mine—Wells spotted a glimmering crystal protruding from a rock face. That said, the rough stone measured approximately 10. 1 cm in length, 6.Because of that, 35 cm in width, and 5. Which means 2 cm in depth, weighing a staggering 3,106 carats. The find was immediately recognized as extraordinary, and the diamond was named after Sir Thomas Cullinan, the chairman of De Beers, honoring his critical role in the diamond industry.
Scientific Explanation: Formation of a Giant
Diamonds form deep within the Earth’s mantle, at depths of 140–200 kilometers, under extreme pressure and temperature conditions. Which means Carbon atoms crystallize into a lattice structure, creating the brilliant gemstone we recognize. The Premier Mine is renowned for producing exceptional-quality diamonds because its geological conditions allow for the growth of large, inclusion‑free crystals. The Cullinan’s size is a rare convergence of ideal conditions—massive carbon deposition, minimal impurities, and a stable environment that allowed the crystal to grow unimpeded.
Cutting the Monster: From Rough to Royal
After the discovery, the Cullinan was transported to London, where it was handed over to **Joseph Asscher & Co.Plus, **, a leading diamond cutter. The cutting process, overseen by **Mr. **C. Worth adding: **J. That said, **C. **M. On top of that, **G. **M. **M. Here's the thing — **M. This leads to **M. **M. **M. Also, **M. **M. Which means **M. **M. Consider this: **M. **M. Still, **M. Consider this: **M. **M. **M. **M. Day to day, **M. **M.
The cutting process, overseen by Joseph Asscher himself, was an endeavor fraught with tension and precision. The knife shattered, but the diamond held firm. Studying the massive stone for months, Asscher identified a natural cleavage plane—a structural weak point—and prepared a specialized steel knife. A week later, with a second, stronger knife and a more calculated strike, the Cullinan split perfectly into two principal pieces along its natural grain. On February 10, 1908, in a workshop filled with anticipation, Asscher struck the knife with a heavy blow. The collective sigh of relief in the room was palpable; a miscalculation could have shattered the priceless crystal into worthless fragments It's one of those things that adds up. But it adds up..
Over the next eight months, a team of three polishers worked fourteen-hour days to transform the two major pieces and several smaller offcuts into nine major stones and ninety-six minor brilliants. Still, the yield was approximately 34. 25% of the original rough weight, a remarkable return for a stone of such complexity.
The Nine Stars: Cullinan I through IX
The resulting gems, designated Cullinan I through IX, form the most prestigious suite of diamonds in history.
- Cullinan I (The Great Star of Africa): At 530.2 carats, this pear-shaped, 74-facet masterpiece held the title of the largest clear cut diamond in the world for over a century. It is set in the head of the Sovereign’s Sceptre with Cross, part of the British Crown Jewels. The sceptre had to be structurally reinforced to support the stone’s immense weight.
- Cullinan II (The Second Star of Africa): Weighing 317.4 carats, this cushion-cut brilliant is the centerpiece of the Imperial State Crown, worn by the monarch at the State Opening of Parliament. It sits directly below the Black Prince’s Ruby (a large spinel), creating a striking focal point.
- Cullinan III (94.4 carats) & Cullinan IV (63.6 carats): Known affectionately as the "Granny’s Chips" by Queen Elizabeth II (a nickname inherited from Queen Mary), these pear and cushion cuts were originally set in Queen Mary’s Crown. They are frequently worn together as a massive pendant brooch, representing one of the most valuable jewelry combinations in existence.
- Cullinan V (18.8 carats): A heart-shaped stone set in a platinum brooch, often worn by Queen Mary and later Queen Elizabeth II as a versatile piece for daytime engagements.
- Cullinan VI (11.5 carats) & Cullinan VIII (6.8 carats): Both marquise cuts, these were designed to be interchangeable elements in a diamond and emerald parure, often worn as pendants or brooches.
- Cullinan VII (8.8 carats): A marquise cut suspended from the diamond-and-emerald Delhi Durbar Necklace.
- Cullinan IX (4.4 carats): The smallest of the major stones, a pear shape set into a platinum ring known as the Cullinan IX Ring, a personal favorite of Queen Elizabeth II for its wearability.
All nine major stones are graded D-color (colorless) and possess exceptional clarity (ranging from Flawless to VS), a testament to the geological perfection of the original rough Simple, but easy to overlook. Took long enough..
Beyond the Cullinan: Contextualizing "Largest"
While the Cullinan remains the largest gem-quality rough diamond ever found, the definition of "largest" carries nuance.
- The Sergio (Carbonado): Discovered in Brazil in 1895, this black carbonado weighs 3,167 carats, technically exceeding the Cullinan in weight. Even so, carbonados are polycrystalline aggregates—tough, opaque, and industrial in nature—unsuitable for faceting into a single gem.
- The Excelsior (995.2 carats): Found in 1893 at the Jagersfontein Mine, it was the largest known diamond before the Cullinan.
