All eyes are on the upcoming jewellery sales events in the US – the Luxury and JCK shows in Las Vegas – as business slows down in other parts of the world.
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DeBeers responds to fluctuations, and the FTC issues warnings on laboratory-grown diamonds. Plus: 302.37 ct Graff Lesedi La Rona is revealed.
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Part 5 of 5 in the series “Value Factors, Design, and Cut Quality of Coloured Gemstones (Non-Diamond)” explores craftsmanship’s bearing on cut quality.
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Part 4 of 5 in the series: Value Factors, Design, and Cut Quality of Coloured Gemstones (Non-Diamond). This article digs deeper into cutters’ choices and explores additional factors used in the trade to assess relative value.
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Part 3 of 5 in the series: Value Factors, Design, and Cut Quality of Coloured Gemstones (Non-Diamond). This article examines how cutting decisions can have a profound affect on a gemstone’s colour quality.
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Part 2 of 5 in the series: Value Factors, Design, and Cut Quality of Coloured Gemstones (Non-Diamond). This article establishes a common language for discussing cutting styles, with a focus on basic faceting styles, and offers a short discussion on cabochons and beads
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Part 1 of 5 in the series: Value Factors, Design and Cut Quality of Coloured Gemstones (Non-Diamond). This article discusses the major value factors that affect the price of a coloured gemstone.
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Explores an exceptional family of diamonds, referred to as “CLIPPIR” (Cullinan-like, Large, Inclusion-Poor, Pure, Irregular and Resorbed), that formed in a super-deep environment.
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GIA’s postdoctoral programme gives researchers access to gemmological data, equipment, and rare, unusual and large gems in its laboratories.
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A summary of the content found in the Autumn 2016 issue of Gems & Gemology.
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