What Is The Largest Diamond In The World?

What Is The Largest Diamond In The World?

Welcome to another edition of the Lesley Ann Jewels blog, your home for expert knowledge on diamonds, gemstones, and all things fine jewelry. As a top-rated luxury jewelry store in Houston, TX, we pride ourselves on providing not only beautifully crafted pieces but also comprehensive information about these magnificent treasures. Today, we delve into the world of diamonds, and not just any diamonds—we're talking about the largest diamonds in the world.

Understanding Diamond Sizes and Measurements

Before we embark on our journey, let's first understand how diamonds are measured. The size of a diamond is primarily determined by its weight in carats, with one carat equivalent to 200 milligrams. While size is certainly impressive, it's also important to consider the three other C's of diamonds: clarity, cut, and color. These factors collectively contribute to a diamond's overall value and beauty.

The History of World's Largest Diamonds

Diamonds have been revered for centuries, and the stories of the world's largest diamonds are often as fascinating as the stones themselves. These stories are filled with mystery, intrigue, and, at times, royal drama. But let's move to the present and introduce you to the absolute giants in the world of diamonds.

The Cullinan Diamond: The Largest Gem-Quality Rough Diamond Ever Found

Discovered in 1905 in South Africa, the Cullinan diamond remains unparalleled in size. Initially weighing a staggering 3,106 carats, it was so large that many believed it to be a common pebble until closer inspection. This colossal gemstone was then gifted to King Edward VII of England and was later cut into several pieces. The largest two cut gems, known as the Great Star of Africa and the Lesser Star of Africa, adorn the British Crown Jewels.

The Sergio Diamond: The Largest Carbonado and Black Diamond Ever Found

Brazil was home to a different, but equally remarkable discovery in 1895: the Sergio diamond. Weighing in at an incredible 3,167 carats, it's the largest black diamond ever found. Carbonados, or black diamonds, like the Sergio, are rare and bear a unique beauty, making them a captivating subject for gem enthusiasts and collectors alike.

Other Noteworthy Large Diamonds in the World

Apart from the giants, several other diamonds have etched their place in the annals of gemstone history. Some of these include:

  • The Hope Diamond: This blue diamond is housed in the Smithsonian Museum and is known for its rumored curse.
  • The Centenary Diamond: Unearthed in the same mine as the Cullinan, it's renowned for its flawless quality.
  • The Golden Jubilee Diamond: Currently the largest cut and faceted diamond in the world, it resides in the Thai Royal Family's collection.
  • The Role of Large Diamonds in Pop Culture

From the dazzling diamonds seen in Hollywood movies to those displayed in royal collections and museums, large diamonds continue to capture our imagination. They inspire designers and jewelers around the world, including our talented team at Lesley Ann Jewels. Our collections often feature pieces inspired by these magnificent gems, offering you the chance to possess your own piece of inspired luxury.

The Future of Diamond Discovery

With the advancement in mining technology and untapped potential in various regions around the world, who knows where the next record-breaking diamond will be discovered? One thing is for sure: the allure of diamonds, large or small, will remain undiminished.


From the exceptional Cullinan to the unique Sergio, the world's largest diamonds offer not just a testament to nature's extraordinary capacity but also a source of endless fascination and inspiration. They remind us why, at Lesley Ann Jewels, we are continually passionate about creating and offering the finest diamond jewelry.

For more on our unique and beautiful pieces, including custom treasures, handmade jewelry, and antique and vintage pieces, contact Lesley Ann Jewels. Our friendly and knowledgeable team is always here to help you find the perfect piece. Explore our website or get in touch with us for more information or to schedule an appointment.