Throughout history, diamonds have symbolised not only wealth and beauty, but also diplomacy, power, and enduring bonds between nations. One of the most remarkable examples of this intersection between luxury and history is the Diamond Necklace of Princess Elizabeth — a gift of 21 South African diamonds, presented to the future Queen during her 1947 royal tour of South Africa.
As Cape Town’s home of natural diamonds, Prins & Prins celebrates this captivating story — one that reflects both South Africa’s rich diamond legacy and its enduring connection to the British royal family.
A Tour to Remember: Princess Elizabeth’s 21st Birthday
In 1947, at just 21 years old, Princess Elizabeth embarked on a historic royal tour of South Africa with her parents, King George VI and Queen Elizabeth (the future Queen Mother), and her sister, Princess Margaret. The four-month tour marked the first time a reigning British monarch visited South Africa, and it attracted enormous public attention throughout the Commonwealth.
For South Africans, the royal visit was a moment of pride — an opportunity to host the young princess as she came of age and took on greater royal responsibilities. To commemorate her 21st birthday, the people of South Africa sought to present Princess Elizabeth with a gift that was not only beautiful but symbolic of the country’s natural wealth and enduring ties to the British Crown.
Their choice was perfect: diamonds — the very stones that had played such a defining role in South Africa’s modern history.
The Gift from South Africa: 21 Magnificent Diamonds
Under the guidance of Field Marshal Jan Smuts, then Prime Minister of South Africa, the South African government commissioned a platinum necklace set with 21 exquisite South African diamonds, one for each year of the princess’s life.
At the heart of the necklace was a stunning 10-carat round brilliant-cut diamond, surrounded by twenty additional large stones of exceptional quality, all ethically sourced from South African mines. The platinum setting — both modern and timeless — allowed the diamonds to take centre stage, reflecting their brilliant fire and clarity.
The necklace was presented to Princess Elizabeth at a state banquet held in her honour in Cape Town. The young princess was deeply moved by the gesture, recognising the symbolic value of the gift: a rare and magnificent tribute from a country rich in diamond heritage.
A Symbol of Royal Diplomacy and South African Heritage
This gift held far greater meaning than its sheer beauty. South Africa, already famed for producing some of the world’s most significant diamonds — including the Cullinan Diamond, discovered in 1905 — had long been an important source of gemstones for royal collections.
The necklace served not only as a token of South African generosity but also as a subtle act of diplomacy, strengthening the ties between Britain and its former dominion. In Princess Elizabeth’s public address, she famously pledged:
“I declare before you all that my whole life, whether it be long or short, shall be devoted to your service and the service of our great imperial family.”
The 21-diamond necklace thus became a glittering symbol of that commitment, forever linking South Africa’s natural riches to the young princess’s promise.
An Evolving Royal Heirloom
Over time, the necklace underwent subtle modifications. Years later, a De Beers diamond — another famed South African stone — was added to the necklace to enhance its design and proportions. Part of the original piece was also reconfigured to create a matching bracelet, further extending the suite’s versatility and regal elegance.
Throughout her reign as Queen Elizabeth II, Her Majesty wore the 21-Diamond Necklace for numerous state occasions, royal portraits, and important public appearances. Its clean, elegant lines and South African provenance made it one of her most recognisable and cherished diamond pieces.
South African Diamonds: A Legacy That Endures
The Queen’s 21-Diamond Necklace stands as a shining example of South Africa’s global contribution to the world of fine jewellery. For over a century, South Africa’s diamond fields have produced some of the world’s most celebrated gems — from the Cullinan stones in the British Crown Jewels to treasured pieces in royal collections across the world.
Today, Prins & Prins Diamonds proudly continues this legacy in Cape Town. Housed within the beautifully restored Huguenot House (1752) — one of Cape Town’s oldest historic buildings — Prins & Prins offers visitors an opportunity to experience South Africa’s gem heritage first-hand.
With a curated collection of ethically sourced natural diamonds and the expertise of GIA-trained gemmologists, Prins & Prins invites modern collectors, couples, and travellers to design their own timeless treasures — much like the royal diamonds gifted to a young princess over 75 years ago.
A Royal Connection Preserved
The story of the Queen’s 21 Diamonds remains one of the most captivating intersections of history, royalty, and South African gem heritage. As the necklace continues to sparkle in royal collections, it reflects not only the enduring glamour of the British monarchy but also South Africa’s place at the heart of the world’s finest diamond stories.
At Prins & Prins, we are honoured to share in that heritage, offering each client the opportunity to carry forward their own chapter in the ongoing story of natural diamonds.
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Discover Cape Town’s finest natural diamonds and create your own modern heirloom inspired by South Africa’s rich diamond legacy.
