Research Article Search Results
Colombian Trapiche Emeralds: Recent Advances in Understanding Their Formation
Proposes a model for trapiche emerald formation based on petrographic, spectroscopic, and chemical examination.
Three Unique Large Natural Pearls from Haliotis (Abalone) Species
Abalone pearls submitted to the New York lab provide insight into the range of colors and shapes this type of mollusk can produce.
On the Trail of Africa’s Hidden Gems with GIA’s Field Gemologists
Visit gem mining areas in Madagascar, Kenya, Tanzania, Zambia and Mozambique with GIA’s field gemologists.
Trapiche and More...
Fall 2015 G&G: Trapiche Emeralds, Synthetic Diamonds and a Large Diamond Source
G&G Brief presents an overview of the content of the Fall 2015 issue of Gems & Gemology.
GIA Field Gemologists seek Ruby, Sapphire, and Spinel in Mogok, Myanmar
Venture deep underground with GIA’s Field Gemologists Vincent Pardieu and Dr. Aaron Palke as they explore the geology of Mogok’s ruby, sapphire, and spinel deposits.
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Venture into Chanthaburi’s Sapphire Mines and Markets with GIA’s Field Gemologists
See eastern Thailand’s resurgent mining operations and gem markets along with GIA’s field gemologists.
GIA Field Gemologists Visit Zambia’s Emerald Mines
Go onsite to Zambia’s emerald mines with GIA’s field gemology team.
GIA Field Gemologists Seek Gems in Luc Yen, Vietnam
Climb Luc Yen’s treacherous limestone mountains in search of the region’s ruby, sapphire, and spinel.
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GIA Field Gemologists Visit Chimwadzulu Ruby Mine, Malawi
Visit Malawi’s Chimwadzulu ruby mine with GIA Field Gemologist Vincent Pardieu.
Discover Mozambique’s Montepuez Ruby Mine with GIA’s Field Gemologists
See inside the world’s most productive ruby mining operation with GIA’s field gemology team.
Conversation with Jewelry Designer Martin Katz
From micro-pave to mega-watt glam, jeweler Martin Katz dazzles Hollywood stars and titans of industry alike. The award-winning designer shares his love of flying, why puka shells matter, and the blue diamond he’ll never forget.
