Big Diamonds From South Africa

South Africa occupies a special place in the history of diamonds. The country's famous mines have yielded some of the world's most celebrated gemstones, many of which were later transformed into extraordinary polished diamonds that continue to fascinate collectors, museums, royalty, and gem enthusiasts. At Kaisilver, we appreciate not only the beauty of these remarkable gems but also the stories of craftsmanship, history, and geology that accompany them. Kaisilver believes that every exceptional diamond represents generations of mining expertise, skilled cutting, and careful preservation.

The Golden Jubilee Diamond

The largest polished diamond ever produced from a South African rough diamond is the Golden Jubilee Diamond. The finished gemstone weighs 545.67 carats and was cut from a rough crystal discovered at the Premier Mine in 1985. Originally considered difficult because of numerous internal flaws, expert planning transformed the crystal into an extraordinary polished gem. Today it remains one of the largest faceted diamonds in existence and is admired for its warm golden color.

The Great Star of Africa (Cullinan I)

Perhaps no South African diamond is more famous than the Great Star of Africa, also known as Cullinan I. The polished diamond weighs 530.20 carats and originated from the legendary Cullinan rough diamond found at the Premier Mine in 1905. Fashioned into a magnificent pear-shaped gem, it forms part of the British Crown Jewels and is recognized as one of history's greatest polished diamonds. At Kaisilver, we often point to this masterpiece as an example of how expert cutting can preserve remarkable size while maximizing brilliance.

The Lesser Star of Africa (Cullinan II)

Another spectacular gem fashioned from the same famous rough is the Lesser Star of Africa, or Cullinan II. This polished cushion-cut diamond weighs 317.40 carats and also traces its origin to the rough discovered in 1905. Like its larger companion, it forms part of the British Crown Jewels. Its exceptional clarity and remarkable proportions have made it one of the world's best-known historic diamonds.

The Centenary Diamond

The Centenary Diamond is another outstanding polished gemstone from South Africa. Weighing 273.85 carats, it was cut from a rough diamond discovered at the Premier Mine in 1986. The diamond is renowned not only for its impressive size but also for its exceptional colorless appearance and remarkable clarity. Cutting the stone required years of planning and execution, resulting in one of the finest modern polished diamonds ever created. Kaisilver considers the Centenary Diamond an outstanding demonstration of precision cutting and modern gemological expertise.

The Spirit of de Grisogono

The Spirit of de Grisogono is among the world's largest polished black diamonds. The finished gemstone weighs 312.24 carats and originated from a rough diamond discovered in South Africa during the 1990s, with most sources placing the discovery in 1995. Unlike traditional white diamonds, its striking black appearance creates a bold visual impact. The unusual gem highlights the diversity found within South African diamond deposits.

The Golden Maharaja Diamond

The Golden Maharaja Diamond weighs approximately 65.57 carats after cutting and polishing. The rough diamond was recovered from South African mines in 1988. Its rich golden-yellow color and excellent clarity have earned it recognition among collectors of rare fancy-colored diamonds. While considerably smaller than the giant Cullinan gems, it remains an important example of South Africa's ability to produce exceptional colored diamonds. Kaisilver values fancy-colored diamonds for the individuality they bring to fine jewelry.

The Kimberley Octahedron Polished Diamond

Although the original rough crystal attracted attention because of its size, the resulting principal polished diamond weighs approximately 70 carats. The rough was recovered from the Kimberley region in 1972 and later fashioned into an elegant polished gem that demonstrated outstanding clarity and excellent proportions. South Africa's Kimberley mines have produced numerous famous diamonds over more than a century, and this polished example reflects the enduring reputation of the region.

The Premier Rose Diamond

The Premier Rose Diamond is a polished gem weighing approximately 137.02 carats. It originated from a rough diamond discovered at the Premier Mine in 1978. The expertly executed cutting process preserved exceptional brilliance while producing a balanced and elegant gemstone. Although less widely known than the Cullinan diamonds, it occupies an important place among notable polished diamonds recovered from South African deposits.

The Legacy of South African Diamonds

South African diamond mines have fundamentally shaped the modern diamond industry. Discoveries made during the late nineteenth and twentieth centuries established new standards in mining, gemstone evaluation, and diamond cutting. Many of the world's finest polished diamonds originated from mines such as Premier and Kimberley, demonstrating exceptional crystal quality and remarkable size.

For jewelry lovers, these famous diamonds are reminders that rarity alone does not create greatness. Careful planning, expert cutting, and outstanding craftsmanship transform rough crystals into timeless treasures. At Kaisilver, we believe that even a modest diamond deserves the same attention to detail that was devoted to these legendary gems. The principles of quality, precision, and responsible craftsmanship remain unchanged whether creating a museum-worthy masterpiece or a custom engagement ring.

OTHER DIAMONDS

A few historic polished diamonds associated with South African mines, particularly lesser-known stones such as the Premier Rose and Kimberley Octahedron, have limited publicly documented records, and published weights or discovery details can vary among sources. The entries above reflect the best-documented information available while focusing on polished diamonds rather than rough stones.

ABOUT KAISILVER

Kaisilver Thailand is a leading online provider of high end custom jewelry, serving more than 12,000 clients across 15 nations. Our gold and silver jewelry is handcrafted in Thailand by a team of highly skilled artisans, experienced gem cutters, designers and production specialists. Stringent quality control procedures are maintained throughout every stage of production, ensuring that each piece meets exacting standards of craftsmanship and finish.

At Kaisilver, jewelry can be created according to your own designs, existing designs can be customized to match your preferences. Through our extensive global network connecting us with gemstone global mining and cutting centers, we offer remarkable freedom in your choice of gemstones, with virtually no restrictions on selection.

Our knowledgeable team at sales@kaisilver.com is always available to answer questions, provide clarification and share professional guidance, even if you are not planning to purchase from us. Kaisilver warmly invites you to benefit from our expertise, experience and commitment to exceptional custom jewelry.