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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Chatoyancy, rarely seen in play-of-colour opal, is observed in Ethiopian material.
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Boulder opal in sandstone matrix is seen as beads in Tucson.
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Review of Exotic Gems, Vol. 3: How to Identify, Evaluate, Select and Care for Matrix Opal, Fire Agate, Blue Chalcedony, Rubellite Indicolite, Paraíba and Other Tourmalines, by Renee Newman.
Read MoreThese red, pink and orange hued gems evoke passion and excitement – and are surefire accessories for sultry summer days.
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G&G Brief presents an overview of the content of the Winter 2015 issue of Gems & Gemology.
Read MoreOpals with an unusual purple bodycolour and strong play-of-colour have recently appeared in the market.
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A new opal deposit was discovered in 2008 near the village of Wegel Tena, in the volcanic rocks of Ethiopia’s Wollo Province.
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A summary of the content found in the Summer 2016 issue of Gems & Gemology.
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Lightning Ridge is the world capital of fine black opals, the most desired of all opals. In June 2015 a group of GIA field gemmologists visited this legendary town in New South Wales, Australia. Come with us to explore this important source of fine opals.
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