Research Article Search Results
Natural-Color Tanzanite and Yellow Sapphire – Tucson 2014
Fine Corundum, Paraíba Tourmaline, and Alexandrite – Tucson 2014
Hunting for “Jedi” Spinels in Mogok
Documents a series of visits to Myanmar in search of exceptionally bright pinkish red spinels possessing no dark tones.
Cultured Pearl Market Update – Tucson 2014
Cultured pearl market update from the 2014 gem shows in Tucson, Arizona.
Assembled “Pearl” Filled with Wire
Microradiography reveals wire fillings within a “pearl” created from two separate specimens.
A Look Inside a Remarkably Large Beaded South Sea Cultured Pearl
A study of the nacre and the cavity of a large Pinctada maxima cultured pearl yields a theory on the specimen’s formation.
Fossilized Drusy Shells – Tucson 2014
Fossilized gastropod shells, trademarked for use in jewelry, are exhibited at the 2014 Tucson gem shows.
Exceptional Gem Artistry in Sunstone, Rutilated Quartz, and Beryl – Tucson 2014
Stunning examples of gem cutting and design from the GJX Show in Tucson, Arizona.
Red Beryl – Tucson 2014
Red beryl, mined from Utah and displayed in both loose form and in suites of jewelry, were seen at the AGTA show in Tucson.
Searching for Emeralds in Afghanistan
GIA field gemologists are a different breed. When Andy Lucas, GIA manager of Field Gemology in Carlsbad, decided to take some vacation time, he didn’t make for the usual destinations. No beaches, ski resorts, or cosmopolitan cities. Lucas instead headed off to Afghanistan, lured by deposits of fine emeralds.
80 Years of Gems & Gemology
Over these eight decades, G&G has been a critical resource for the gem and jewelry industry. Groundbreaking articles on diamond grading appeared as early as the 1940s. Through the Lab Notes section, GIA gemologists reported on the latest treatments and synthetics, which helped to protect the trade and the public.
Landmark Articles from Gems & Gemology
For eight decades, Gems & Gemology, GIA’s peer-reviewed quarterly journal, has educated generations of readers and protected the gem-buying public. We share ten landmark articles that were particularly significant to gem and jewelry professionals.
