Among the collection assembled by Dr Edward Gübelin are a number of uncommon gemstones from many worldwide localities.
Read MoreTao Hsu, January 25, 2016
All jewellery professionals are familiar with the city of Shenzhen, a global jewellery manufacturing centre and a leader of China’s fast-growing gem and jewellery industry. Join the GIA team as we tour the city and discover more about its leading jewellery brands.
Read More, March 1, 1991
This section, from the Spring 1991 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.
Read MorePeter C. Zwaan, June 1, 1982
An overview of the many types of gem-quality material, and its inclusions, currently found in Sri Lanka.
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