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Books: Jewels by JAR

A review of Jewels by JAR

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Books: Gemstones of the World

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Beryllium in Blue Sapphires, Both Natural and Diffusion-Treated

Overview and commentary on the 2013 InColor article “Blue Sapphires and Beryllium: ‘An Unfinished World Quest.’”

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Assembled “Pearl” Filled with Wire

Microradiography reveals wire fillings within a “pearl” created from two separate specimens.

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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.

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Cultured Pearl Market Update – Tucson 2014

Cultured pearl market update from the 2014 gem shows in Tucson, Arizona.

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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.

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Tucson 2014 Overview

An overview of the 2014 gem shows in Tucson, Arizona.

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ラウンドで1カラットを上回るCVD(化学蒸着)法による合成ダイヤモンドを香港のラボで鑑別 (英語)

Advances in CVD growth technology have resulted in crystals that yield well-proportioned round brilliant cuts.

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ダイヤモンドビュー(DiamondView)で珍しい画像のCVD法による合成ダイヤモンド (英語)

Deep blue fluorescence in a CVD synthetic diamond mimic patterns found in natural specimens.

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AOTCグループ製、High-pressure High-temperature(高圧/高温)法で合成されたほぼ無色のダイヤモンド (英語)

Presents the gemological and spectroscopic properties of a suite of synthetic diamonds grown by AOTC using high pressure and high temperature.

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書籍:David Webb − The Quintessential American Jeweler(デビッド・ウェッブ − 典型的なアメリカの宝石商)

Review of Ruth Peltason's David Webb – The Quintessential American Jeweler

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