Wollastonite Blizzard Within Glass
Beads believed to be synthetic quartz are discovered to be glass with a surprising set of inclusions.
Accurate Reporting of Key Trace Elements in Ruby and Sapphire Using Matrix-Matched Standards
Presents a group of corundum standards developed by GIA to improve the accuracy and efficiency of its laser ablation–inductively coupled plasma–mass spectrometry (LA-ICP-MS) instruments.
Two Unusual Natural Sapphires with Synthetic Ruby Overgrowth
For the first time, the Carlsbad and New York labs see natural sapphire seeds with synthetic ruby overgrowth.
Real-Time Microradiography of Pearls: A Comparison Between Detectors
Compares the image quality provided by real-time microradiographic imaging (RTX) units fitted with two different detectors: an image intensifier (II) and a flat panel detector (FPD).
宝石の巨匠: Drehers家と素晴らしい彫刻 (英語)
A look at the artistic heritage of the Drehers, an influential family of gem carvers in Idar-Oberstein, Germany.
The World’s Biggest Diamonds: Windows into the Earth’s Deep Mantle
An overview of the Winter 2017 Gems & Gemology content.
Data Supplement
Compares the image quality provided by real-time microradiographic imaging (RTX) units fitted with two different detectors: an image intensifier (II) and a flat panel detector (FPD).
Chart: Inclusions in Natural, Synthetic, and Treated Ruby
Provides a visual guide to the internal features of natural, synthetic, and treated rubies.
オーストラリア東部のアコヤ真珠養殖業 (英語)
Characterizes the akoya cultured pearls produced on the eastern shoreline of Australia using native Pinctada imbricate fucata mollusks.
Preliminary Observations on Facet-Grade Ruby from Longido, Tanzania
Microscopic observation and trace element analysis is performed on rubies from Longido.
Katzenbach Designs、2年間でAGTAより2回受賞
GIAを卒業したデザイナーが、米国メイン州で産出されたトルマリン、精密なファセッティング、ファンタジーカットの宝石やカスタムデザインのジュエリーに注力します。
ツーソンで育った愛: GIA同窓会パーティーで地質学者とデザイナーに訪れた「信じられない幸運」
ツーソンで行われたGIA同窓会パーティーに出席するために並んでいた男女が、永遠に人生を変えるチャンスに巡り合いました。
デザイナーの「複雑で風変わりな」作品、ハリウッドとワシントンD.C.で注目の的となる
Los Angeles designer designs a popular political pendant, is earning national press coverage and finding fans among Hollywood A-listers.
Suggested Reading on Rubies and Their Inclusions
Suggested Reading on Rubies and Their Inclusions
2017年のオークションに関する報告： 依然として堅調なピンクとブルーのファンシーカラーダイヤモンド
購買する商品についてのバイヤーの見方が厳しくなっているものの、11億ドル（約1243億円）以上の価値のある非常に高級なダイヤモンド、カラー宝石やジュエリーが2017年のオークションで落札されました。
30-Year Marine Corps Veteran Fulfills Dream of Becoming a Field Gemologist
The rigors and often-harrowing conditions of gemology field expeditions are no match for 30-year Marine veteran with a love of gems.
True Colors of “Dalmatian Jasper”
Discusses the mineralogical composition and provenance of this spotted decorative gemstone.
Saltwater Pearls from the Pre- to Early Columbian Era: A Gemological and Radiocarbon Dating Study
Examines 85 saltwater natural pearls, reportedly harvested from the Caribbean islands off the coast of Venezuela during the early 16th century, to determine their age.
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