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GIA's Gübelin Gem Project: Tourmaline

Tourmalines have a very complex chemical composition, and more than a dozen mineral species are recognised within this group.

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Tourmaline
Article
Tourmaline Description

Tourmalines come in a wide variety of exciting colours. In fact, tourmaline has one of the widest colour ranges of any gem species, occurring in various shades of virtually every hue.

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Woman holds multiple strands of black cultured pearls.
Article
‘Pearl Goddess’ Pours Experience and Support into GIA Alumni Association

Betty Sue King shares her expertise at chapter meetings, on pearl trips and with donations to the Tucson auctions – all in support of the GIA alumni.

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A view of downtown Hong Kong – with a freeway traveling through it.
Article
U.S. Retailers Continue to Cite ‘Challenging’ Environment; Synthetic Melee Detected

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 sits on her motorcycle.
Article
‘Hippie’ Designer-Appraiser Follows Her Heart and Re-ignites Local Alumni Chapter

Rebecca Buys, GG, with a fulfilling career as a designer and appraiser, guides GIA alumni opportunities in San Diego, California.

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A scattering of rough diamonds
Article
De Beers Optimistic as Sales Revive; Luxury Houses Remain Cautious

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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Karyna Sena stands in front of a sapphire mine near Colombo, Sri Lanka.
Article
Designer’s Love of Brazil – and its Gems – Shines in Every Piece She Creates

Karyna Sena, a third-generation gem and jewellery professional, infuses the rich tapestry of Brazil – and her joie de vivre – in each of her designs.

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Gemstone Durability: Design to Display

A treatise on the design, display, care and repair of fine gemstones.

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Abstracts; Summer 1991

From the Summer 1991 issue of Gems & Gemmology, a summary of important gemmology-related articles published in other journals.

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Article
And Then Came the Fantasy Cut

Once upon a time, gem cutting was a strict craft bound by centuries of tradition. Then Bernd Munsteiner (b. 1943) invented the fantasy cut.

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