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Mining Diamonds in the Canadian Arctic: The Diavik Mine

Located near the Arctic Circle, Diavik is one of the world’s richest diamond deposits and a leader in sustainable mining.

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299.35 ct and 112.61 ct diamond rough
Letšeng’s Unique Diamond Proposition

Explores the history, geology and current production of this unique source of large diamonds.

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Article
Field Report: Diamond Mining in Minas Gerais, Brazil

A first-person account of diamond mining in Minas Gerais, Brazil, which has been a source since the early 1700s.

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Miners use shovels and sluicing equipment to search for diamonds near the Vaal River in South Africa.
Article
Historical Reading: The Diamond Fields of South Africa: Part 2 (1893-2014)

Within a few years of their discovery, the diamonds deposits of South Africa produced more diamonds than had come from India in two millennia.

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An early black and white photo that shows deep trenches dug into the ground in the search for diamonds. Ladders and ropes help the miners excavate and traverse the mine.
Article
Historical Reading: The Diamond Fields of South Africa: Part 1 (1868-1893)

The discovery of diamonds in South Africa in early 1867 marked the start of an historic period of diamond exploration.

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Article
GIA's Gübelin Gem Project: Various Gems, Danburite – Humite

Among the collection assembled by Dr Edward Gübelin are a number of uncommon gemstones from many worldwide localities.

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Man stands at a podium in front of a room of people.
Article
What Country Do My Diamonds and Other Gemstones Come From?

Dr James Shigley shares how GIA determines coloured stone origin and the mysteries of diamond origin.

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A ruby and diamond choker. The centre section is made of six strands of red pearls, framed by rubies and diamonds.
Article
Mughal Jewels Auction: Al-Thani Collection Raises $109 Million (£87.5 Million)

Collectors from around the world descended on Christie's Maharajas & Mughal Magnificence auction of the jewels from the Al-Thani Collection on 19 June.

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Multi-colored gems are superimposed on an image of glacier peaks.
Article
Gems and Minerals from the Sub-Arctic

Circumnavigate the boreal reaches of the globe to explore gems from polar regions.

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Article
Melee: Building Blocks of Contemporary Design

Learn about the versatility of melee in jewellery design and how to design and engineer long-lasting jewellery using the GIA Quality Assurance Benchmarks.

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