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


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Researchers from GIA’s Bangkok laboratory seek to identify low-temperature heat treatment in basalt-related blue sapphires.
Read MoreGIA Career Service advisors offer tips on how to navigate the changing workforce and consumer attitudes for success in the gem and jewelry industry.
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Geologist, 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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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.
Read MoreAlumni chapter leader wants to help develop Mexico’s third-most populous city into a thriving jewelry design and manufacturing hub.
Read MoreNature gives us a brilliant palette of color-changing leaves and a spectacular kaleidoscope of colorful sunsets during the fall season.
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Aesthetically pleasing inclusions are found in topaz from Pakistan’s Shigar Valley.
Read MoreJDT program gives designer the skills and techniques – and freedom – to create the designs that move past the trends.
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Dave Bindra shows some noteworthy pieces he obtained on the secondary market and shares his thoughts on the state of the colored stones market.
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