Among the collection assembled by Dr Edward Gübelin are a number of uncommon gemstones from many worldwide localities.
Read MoreTanzanite is the blue to violet to purple variety of the mineral zoisite. It is mined commercially only in one area of the world: the Merelani Hills of Tanzania, which is where it gets its name.
Read MoreLush blue velvet. Rich royal purple. Exotic tanzanite is found in only one place on earth, near majestic Kilimanjaro
Read MoreTanzanite is relatively new to the coloured stone galaxy. Almost overnight, tanzanite became popular with leading jewellery designers and other gem professionals, as well as with customers who had an eye for beautiful and unusual gems.
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Economists are recognising that the decline in middle-class purchasing power is directly affecting some consumer products – including jewellery.
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Rebecca Buys, GG, with a fulfilling career as a designer and appraiser, guides GIA alumni opportunities in San Diego, California.
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De Beers holds largest cycle (sight) in more than two years. Luxury sales have begun to rise again after a negative year.
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Everyone would agree that exposure and focus are the most critical aspects to consider when photographing gems or jewellery. But there are two other practices that take this kind of photography even further: lighting and positioning of the gem or jewel. The first component ensures a successful photograph. The second makes a picture interesting – or even compelling.
Read MoreA treatise on the design, display, care and repair of fine gemstones.
Read MoreThis article, from the Autumn 1991 issue of Gems & Gemology, is a compilation of abstracts of important gemmology-related articles published outside of Gems & Gemology.
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