A look at the mining and distinguishing characteristics of this naturally vibrant blue sapphire.
Read MorePresents a group of corundum standards developed by GIA to improve the accuracy and efficiency of its laser ablation–inductively coupled plasma–mass spectrometry (LA-ICP-MS) instruments.
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All jewellery professionals are familiar with the city of Shenzhen, a global jewellery manufacturing centre and a leader of China’s fast-growing gem and jewellery industry. Join the GIA team as we tour the city and discover more about its leading jewellery brands.
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Everyone would agree that exposure and focus are the most critical aspects to consider when photographing gems or jewellery. But there are two other practices that take this kind of photography even further: lighting and positioning of the gem or jewel. The first component ensures a successful photograph. The second makes a picture interesting – or even compelling.
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This article, from the Summer 2009 issue of Gems & Gemmology, is a compilation of abstracts of important gemmology-related articles published outside of Gems & Gemmology.
Read MoreAn overview of Australia's recent significance in the production of blue sapphire.
Read MoreA treatise on the design, display, care and repair of fine gemstones.
Read MoreAn overview of the potential effects that heat treatment can have on corundum.
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An overview and commentary on the 2012 Journal of Gemmology article, “Flux-grown synthetic alexandrites from Creative Crystals Inc.”
Read MoreA review of heat treatment methods available for use on natural or synthetic corundum.
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