Research Article Search Results
Cultured Pearl Market Update – Tucson 2014
Cultured pearl market update from the 2014 gem shows in Tucson, Arizona.
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.
Fossilized Drusy Shells – Tucson 2014
Fossilized gastropod shells, trademarked for use in jewelry, are exhibited at the 2014 Tucson gem shows.
Fine Corundum, Paraíba Tourmaline, and Alexandrite – Tucson 2014
Updates on the corundum, paraíba tourmaline, and alexandrite markets from the 2014 gem shows in Tucson, Arizona.
Natural-Color Tanzanite and Yellow Sapphire – Tucson 2014
Fine unheated tanzanite, untreated yellow sapphire, and heated pink zircon on display at GJX in Tucson.
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.
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.
Near-Colorless HPHT Synthetic Diamonds from AOTC Group
Presents the gemological and spectroscopic properties of a suite of synthetic diamonds grown by AOTC using high pressure and high temperature.
Assembled “Pearl” Filled with Wire
Microradiography reveals wire fillings within a “pearl” created from two separate specimens.
Polymer-Impregnated Aventurine Quartz, a New Imitation of “Ice Jade”
A bangle, thought to be jadeite jade, is revealed by laboratory testing to be polymer-impregnated aventurine quartz.
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.
