Welcome to the Gem-A Blog. Here, you will find up-to-date information on the latest news and trends, exclusive features and regular reports from a host of gemmology insiders. Each month we will share highlights from our printed publications and take you behind-the-scenes at our popular Gem Central events. Would you like to submit an article for the Blog? Email us on This email address is being protected from spambots. You need JavaScript enabled to view it.


Zircon from Vietnam: Properties and Heat Treatments

Zircon from Vietnam: Properties and Heat Treatments

This article summarises a study on the gemmological and physical properties of brown zircon from the Central Highlands of Vietnam...

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An Interview with GCDC Award Winner Julia Neill

An Interview with GCDC Award Winner Julia Neill

Julia Neill was one of the 2017 winners of Gem-A’s contribution to the Goldsmiths' Craft & Design (GCDC) Awards, often referred to in the industry as the 'Jewellery Oscars'.

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The Tale of the Mouawad Blue Diamond

The Tale of the Mouawad Blue Diamond

Jack Ogden FGA looks into the story of the world's second largest blue diamond, the Mouawad Blue Diamond, previously known as the Tereschenko Blue Diamond...

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Whitby Jet: A Discussion of its Simulants

Whitby Jet: A Discussion of its Simulants

Sarah Steele FGA DGA discusses the many simulants of one of Britain’s most famous native gemstones...

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