A look at the mining and distinguishing characteristics of this naturally vibrant blue sapphire.
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Fossicking is a special type of mining activity that Australians love. Australia is a large country rich in many gem resources. Come to Australia with the GIA field gemmology team to feel the passion of gem fossicking in the southern hemisphere.
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Natural pearl identification is one of the critical problems in pearl research. The DNA study of pearly molluscs and oysters facilitates the solving of this problem. To fulfil this goal, GIA sent a group from both Research and Education to Tennessee to sample the freshwater molluscs for DNA bar-coding. Come with us to Camden, Tennessee, to see how we dive for pearly shells.
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Enter a world not well-known in the West—the world of the maharajas and their jewellery, coveted by the modern-day moguls of business, entertainment and royalty. See the fantastic works of art made today in the form of enamelled Kundan meena jewellery and the regal look of polki diamonds.
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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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Reports preliminary findings—based on FTIR and Raman spectrometry of more than 300 samples—on distinguishing natural and synthetic emeralds using vibrational spectroscopy.
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Examines the growing percentage of rough diamonds being sold through auctions, a shift that has caused price volatility while opening up supply to more manufacturers and dealers.
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Describes the extremely rare polished pink diamonds from Australia’s Argyle mine that have been sold for 30 years through invitation-only tenders.
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Presents spectroscopic and phosphorescence data of the Blue Moon, a 12.03 ct Fancy Vivid blue diamond discovered at the historic Cullinan mine in early 2014.
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Offers a first-hand look at Sri Lanka’s mining, cutting, jewellery manufacturing and retail sectors, where tradition and innovation converge.
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