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Pearl
Perfect shining spheres. Lustrous baroque forms. Seductive strands, warm to the touch. Pearls are simply and purely organic.
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Natural-Color Tanzanite and Yellow Sapphire – Tucson 2014
Fine unheated tanzanite, untreated yellow sapphire, and heated pink zircon on display at GJX in Tucson.
Assembled “Pearl” Filled with Wire
Microradiography reveals wire fillings within a “pearl” created from two separate specimens.
Varieties of Rutilated Quartz – Tucson 2014
Thanks to its many varieties and rising value, rutilated quartz garnered attention at the 2014 gem shows in Tucson, Arizona.
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.
“Gran Dama” Brooch Featuring Large Melo Pearl
The centerpiece of this brooch is a 98.67 ct Melo pearl, believed to be one of the world's largest.
Enormous South Sea Cultured Pearl Filled with Cultured Pearls
An unusually large cultured pearl was filled with multiple cultured pearls, perhaps after the emergence of an original single-bead nucleus.
Hong Kong Jewelry Show: The World’s Largest Assemblage of Cultured Pearls
A preview of the Hong Kong Jewelry Show, taking place Sept. 11–17.
Atypical Freshwater Cultured Pearls with Damaged Nacre
Examination of four baroque-shaped pearls with damaged nacre layers.
Natural Pearls from Australian Pinctada Maxima
Explores the fascinating history of natural pearling in Australian waters and examines the properties that might help distinguish these natural pearls from those that are accidentally produced during the culturing process.
Winter 2012 Gem News International
A compilation of gem news from around the world, covering topics such as localities, unusual gem materials, market news, new products, discoveries, jewelry manufacturing techniques, and industry trends.
Spectral Characteristics of Natural-Color Saltwater Cultured Pearls from Pinctada Maxima
Natural-color saltwater cultured pearls (SWCPs) from Pinctada maxima were studied using UV-Vis-NIR and PL spectroscopy to better understand the mechanisms of their coloration and to separate them from other SWCPs with similar natural colors.
Cultured Pearl Farming and Production in the Federated States of Micronesia
The current production of cultured pearls from the black-lipped pearl oyster (Pinctada margaritifera) in the Federated States of Micronesia includes mostly beaded as well as blister and nonbead-cultured pearls in a wide array of colors.
