
Lightning Ridge(闪电山脊):全球优质黑蛋白石之都
Lightning Ridge(闪电山脊)是全球优质黑蛋白石之都,这种蛋白石是人们最梦寐以求的一种。 2015 年 6 月,一群 GIA 实地宝石学家参观了澳大利亚新南威尔士的这个传奇小镇。 和我们一起探索这个重要的蛋白石产地吧。

Designer’s Inventive, ‘Outrageous’ Jewelry Wins Industry Awards
Emerging artist Trishala Ashok – who has won multiple design awards – looks beyond the mundane and minutiae of daily life to create her jewelry.


Australian Opal Beads with Blue Play-of-Color
Boulder opal in sandstone matrix is seen as beads in Tucson.

Steam-Dyed Amber
Testing identifies a new treatment method as the cause of color in beeswax amber.

Garnet Inclusion Illusion
A quartz double cabochon showcases a garnet placed to imitate an inclusion.

The Challenges of Cutting a Large Gem Opal Rough (英语)
A first-person account of cutting a 3,019 ct piece of white opal to create a 1,040 ct gem with play-of-color across the surface.

俄罗斯宝石打造的法贝热哥萨克人像 (英语)
Hardstone figures of two Russian imperial bodyguards, commissioned in 1912 by Nicholas II, demonstrate the House of Fabergé’s meticulous detail and craftsmanship.

Robotic Colored Stone Cutting Machines
Master cutter Kiwon Jang demonstrates his newest cutting machine at Tucson’s AGTA show.


Metallic Chromium Inclusions in Industrial By-Product Ruby
Inclusions in technogenic ruby slag help to separate this material from other specimens, both natural and synthetic.

Natural Blisters with Partially Filled Areas
Blisters examined in the Bangkok lab have been treated with an artificial filler.

Iridescent Spondylus Pearl
Iridescence is seen in a porcelaneous pearl examined at the Carlsbad laboratory.

跟随 Rainier(雷尼尔)的步伐:契沃尔祖母绿矿之旅 (英语)
Chronicles the famed emerald source through the adventures of Peter W. Rainier, who directed the mine from 1926 to 1931 and restored its former glory.

The Color of Responsibility: Ethical Issues and Solutions in Colored Gemstones (英语)
Examines the challenges of ethical sourcing and production of colored stones, and what some industry leaders are doing to address the situation.

Multiphase Fluid Inclusions in Blue Sapphires from the Ilmen Mountains, Southern Urals
Sapphires from Russia’s Ilmen State Reserve may provide insight into gem corundum from secondary placers.

Inclusions in Burmese Amber
Examples of Burmese amber specimens with well-preserved inclusions that have become available in recent years.

The Fluid Art of Angela Conty
Angela Conty exhibits and discusses her work at the 2016 Tucson gem shows.

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