Presents the gemmological and spectroscopic properties of a suite of synthetic diamonds grown by AOTC using high pressure and high temperature.
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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 MoreOne of the most interesting of the commercially available Czochralski pulled synthetic corundums is pink “Ti-sapphire.”
Read MoreThis article reports the results of a series of experiments conducted to explain the phenomenon of induced fingerprints.
Read MoreMost Russian hydrothermal synthetic rubies and pink, orange, green, blue and violet sapphires—coloured by chromium and/or nickel—reveal diagnostic zigzag or mosaic-like growth structures associated with colour zoning.
Read MoreGreater amounts of colourless sapphire—promoted primarily as diamond substitutes, but also as natural gemstones—have been seen in the gem market during the past decade.
Read MoreA new synthetic ruby and synthetic blue sapphire have been synthesised by Johann Lechleitner of Innsbruck, Austria.
Read MoreResearchers from the Tairus joint venture have developed the technology for the hydrothermal growth of gem-quality crystals of synthetic sapphire.
Read MoreThe author examines the gemmological properties of Chatham flux-grown synthetic orange sapphires and blue sapphires.
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