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GIA's Gübelin Gem Project: Various Gems, Taaffeite - Zoisite

Among the collection assembled by Dr Edward Gübelin are a number of uncommon gemstones from many worldwide localities.

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Uniquely cut topaz
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Topaz Quality Factors

Learn about the factors that make topaz so desirable.

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Article
Topaz Journey

Honey yellow. Fiery orange. Cyclamen pink. Icy blue. In warm or cool tones, topaz is a lustrous and brilliant gem

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Precious topaz colour range
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Topaz Description

Topaz actually has an exceptionally wide colour range that, besides brown, includes various tones and saturations of blue, green, yellow, orange, red, pink, and purple. Colourless topaz is plentiful, and is often treated to give it a blue colour

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97.45-carat Imperial Topaz
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Topaz History and Lore

Most authorities agree that the name topaz comes from Topazios, the old Greek name for a small island in the Red Sea, now called Zabargad. (The island never produced topaz, but it was once a source of peridot, which was confused with topaz before the development of modern mineralogy.)

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Multi-colored gems are superimposed on an image of glacier peaks.
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Gems and Minerals from the Sub-Arctic

Circumnavigate the boreal reaches of the globe to explore gems from polar regions.

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Man sits next to microscope.
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Tucson Visit Spurs Geology Professor and Publisher to Head Back to School

Geologist and publisher earns his GG so he can share more information on gem materials with visitors to Geology.com, his Earth Science website.

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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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Woman in green and white top and a white apron shows off a mollusc with a pearl in it.
Article
Jeweller’s Goal: Unite Gem and Jewellery Industry in One of Mexico’s Largest Cities

Alumni chapter leader wants to help develop Mexico’s third-most populous city into a thriving jewellery design and manufacturing hub.

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Topaz from Pakistan with microlite inclusions.
Microlite Crystals in Topaz from Pakistan

Aesthetically pleasing inclusions are found in topaz from Pakistan’s Shigar Valley.

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