GIA’s services and instruments have grown in importance and impact as new gem treatments and laboratory-grown gems have entered the market.
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A look at the mining and distinguishing characteristics of this naturally vibrant blue sapphire.
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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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G&G Brief presents an overview of the content of the Summer 2015 issue of Gems & Gemology.
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G&G Brief presents an overview of the content of the Spring 2015 issue of Gems & Gemology.
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The third in the series, "Sapphire: A Crystal With Many Facets," this article looks at various emerging applications for synthetic sapphire.
Read MoreThis article describes the first application of laser-induced breakdown spectroscopy (LIBS) to gemmology.
Read MoreResearchers from the Tairus joint venture have developed the technology for the hydrothermal growth of gem-quality crystals of synthetic sapphire.
Read MoreToday, only by combining different gemmological tests with years of practical experience, can a conclusive determination of the origin of a sapphire be made.
Read MoreThe author examines the gemmological properties of Chatham flux-grown synthetic orange sapphires and blue sapphires.
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