Among the most famous diamonds in history, few can rival the grandeur and legacy of the Cullinan Diamond. Discovered in 1905 at South Africa’s Premier Mine, this breathtaking rough diamond weighed an astonishing 3,106 carats—making it the largest famous diamond ever unearthed. It was quickly recognized as one of the world’s most valuable historical diamonds, and its journey from mine to monarchy became part of gemstone legend.

This rare historical diamond was eventually cut into nine major stones and 96 smaller ones, each with its own place in history. The Cullinan I, also known as the Great Star of Africa, held the title of the world’s largest cut diamond for decades at 530.20 carats. It now sits regally atop the British Sovereign’s Sceptre. Alongside it, the Cullinan II adorns the Imperial State Crown—together forming a key part of the famous diamonds in royal collections.

Meanwhile, Cullinan diamonds III through IX remain in the personal possession of the British Royal Family. Affectionately referred to as “Granny’s Chips,” they are nonetheless priceless heirlooms with deep historical resonance—diamonds with royal history and legendary diamonds in famous jewels.

For decades, inaccurate information about the Cullinan diamonds’ dimensions circulated online and in gemmological literature. Many of these errors stemmed from replicas described in a 1960s article series by Tom Barbour in Lapidary Journal. However, more reliable records—including the original Asscher Brothers’ diaries and data from the Crown Jeweller—confirm the true measurements. For example, the Cullinan I measures precisely 58.9 x 45.4 x 27.7 mm. These corrected dimensions reinforce the importance of separating historical diamond facts from long-standing myths.

The history behind famous diamonds like the Cullinan speaks to more than just carat weight—it reflects political power, craftsmanship, and global intrigue. These are not just historic diamonds worth millions; they are symbols of legacy and empire. Like the Koh-i-Noor diamond and The Hope Diamond, the Cullinan carries a narrative woven through royal coronations, colonial history, and gemstone artistry.

Today, as we explore diamonds with fascinating pasts, new technology allows us to appreciate such marvels in innovative ways. Through lab innovation, we can now experience diamonds with unique histories reimagined in modern form—thanks to grown diamonds and created diamonds. These sustainable gems reflect the brilliance of their ancient counterparts, offering a chance to wear the sparkle of a legacy while embracing responsible sourcing. It’s truly nature’s wonder recreated.

In the grand timeline of famous diamonds, the Cullinan stands tall—as a gemstone of unmatched size, royal significance, and timeless elegance. From ancient diamonds with royal significance to diamonds from history’s most famous jewels, few have shaped history quite like this one.