Article
Guardians of Trust: GIA’s Innovative Research, Instruments and Services
Russell Shor, September 20, 2019
GIA’s services and instruments have grown in importance and impact as new gem treatments and laboratory-grown gems have entered the market.
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Gemstone Durability: Design to Display
Deborah Dupont Martin, June 1, 1987
A treatise on the design, display, care and repair of fine gemstones.
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Carving Gem-Quality Opal
Theodore Grussing, June 1, 1982
An examination of the challenges of carving gem-quality opal.
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