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These rubies were determined to be glass filled, partly due to the use of the DiamondView.
Separating Glass-Filled Rubies Using the DiamondView

The DiamondView instrument is able to identify glass as the filler in a pair of heart-shaped rubies.

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Spring 2000 Gem News International

A compilation of gem news from around the world, covering topics such as localities, unusual gem materials, market news, new products, discoveries, jewellery manufacturing techniques and industry trends.

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Sixteen samples of facet-quality ruby
Preliminary Observations on Facet-Grade Ruby from Longido, Tanzania

Microscopic observation and trace element analysis is performed on rubies from Longido.

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Rough rubies from Zahamena National Park in Madagascar.
Rubies from a New Deposit in Zahamena National Park, Madagascar

A field expedition from GIA Bangkok explores a new ruby deposit and collects specimens for study.

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2016 GJX show at Tucson
Tucson 2016

An overview of the 2016 gem shows.

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Wheel of Light Numinous pendant
Wheel of Light’s Mesmerising Optics

A closer look at the Spectrum award-winning pendant from Nature’s Geometry.

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Map showing Muling’s location
Ruby and Sapphire from Muling, China

An emerging corundum deposit in north-eastern China is discussed.

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Summer 2007 Gem News International

A compilation of gem news from around the world, covering topics such as localities, unusual gem materials, market news, new products, discoveries, jewellery manufacturing techniques and industry trends.

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Spring 2004 Gem News International

A compilation of gem news from around the world, covering topics such as localities, unusual gem materials, market news, new products, discoveries, jewellery manufacturing techniques and industry trends.

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Miners Dig Pits in Montepuez
Summer 2010 Gem News International

A compilation of gem news from around the world, covering topics such as localities, unusual gem materials, market news, new products, discoveries, jewellery manufacturing techniques and industry trends.

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