The history of diamonds is a history of numbers. The world’s diamonds, by and large, formed three billion years ago at depths of between 150 and 200 kilometres below the earth’s surface. There, the mercury peaks at over 1,000 degrees Celsius and the pressure, at approximately 50 kilobars, is 50,000 times the atmospheric pressure at the Earth’s surface. Only when these conditions came together could the world’s hardest, most durable and undoubtedly most beautiful mineral be formed.

The same conditions that produce diamonds also produce magma, which is created in the Earth’s upper crust and quickly expands. As it does, volcanic eruptions take place that push the magma – and the diamond-bearing rocks within it – towards the surface of the Earth. Some of the columns that form in this rush to the surface are known as kimberlite pipes (after the town of Kimberley, where diamonds were first discovered in South Africa). Through these pipes, diamonds are made accessible to miners.

For over 25 years, South African Diamonds, trading as Millennium Diamonds, has been sourcing, cutting, polishing and trading the very best in South African diamonds. It is our love for and loyalty to South Africa, one of the world’s richest diamond-bearing countries, that makes us unique. All of our stones are sourced in South Africa, cut and polished by South African artisans, and traded both within South Africa’s borders and beyond. And, most importantly, every single one is natural – a product of the Earth and its ancient and complex processes.

As we go about our work, our persistent focus is on excellence. Our diamonds are cut to perfection using techniques and technology of the highest quality and precision. The final piece is a magnificent and luminous legacy resting in the palm of your hand.

South African Diamonds™ manufactures to the highest industry standards. All our rough diamonds are sourced from South Africa. We have over 20 years of experience in the buying and polishing of rough diamonds, and are proud members of:

  • Master Diamond Cutters Association of South Africa
  • The Diamond Dealers Club of South Africa

South African Diamonds™ staff members have undergone training from the:

  • GIA (Gemological Institute of America)
  • The Jewellery Council of South Africa

30 Day Guarantee

Diamonds purchased from us may be returned within 30 days from date of purchase, provided that it has not been altered in any way and is accompanied by original documentation.


Free Shipping (SA)

We will ship, free of charge, orders totalling more than R20,000.
Items shipped locally (South Africa) will arrive within 48 hours upon confirmation of payment.


Payment Options

We accept Cash, EFT, and Credit Card (subject to 3% surcharge). In the case of a cheque, the diamond will be shipped once funds clear (5 - 7 working days).


We accept trade-ins of diamonds not purchased from us if the diamond meets certain criteria. The amount to be credited against your purchase will be based on current market value.


We offer full purchase price upgrades on diamonds purchased from us. The diamond must be in a new condition without having been altered in any way, accompanied by original documentation.