莫桑比克北部的红宝石采矿点考察报告(尼亚萨省和德尔加杜角省)

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Richard T. Liddicoat(理查德·T·李迪克):无私奉献、虚怀若谷

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卡尔斯巴德校区的在校就读申请

卡尔斯巴德校区的在校就读申请

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纽约校区在校申请

纽约校区在校申请

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Sowerby(索尔比)的《英国矿物学》(British Mineralogy) 和 Martha Proby(玛莎·普洛比)

James Sowerby(詹姆斯·索尔比)的《英国矿物学》(British Mineralogy) 及其对 Martha Proby(玛莎·普洛比)和 19 世纪科学界的影响。

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Lester Benson(莱斯特·本森)(1921 年-1961 年)

Renowned teacher, master of gem identification, and developer of gemological techniques and instruments.

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使用荧光观察分析经高压高温处理的钻石

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Inside the Geode Business

At age 79, Bob Halem loves reminiscing about the serendipity that brought him into the world of colored stones.

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Bridges Family and Tsavorite Update

Bridges reflects on his father’s life and work, which led him from his native Scotland to Africa, where he made his mark in the gem world with the discovery of tsavorite. For all the fame the discovery brought him, it seemed cursed from the start.

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My Life as a Colored Gem Liquidator

Mr. Pavlik started out buying and selling cut gems, then added gem cutting to his skill set with a stint in the famed cutting center of Idar-Oberstein. Eventually, he turned to liquidation of others’ excess and unused gem materials. Now, he travels the world to seek gems that, for one reason or another, haven’t sold, and matches those “unwanted” products with the right buyer.

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Colored Gem Supply and Market Update

Dudley Blauwet, a colored gemstone dealer from Colorado, has been traveling throughout Asia and parts of Africa for three decades, hunting down good, saleable gem material.

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Market Update and Exceptional Colored Gems

In an exclusive interview with Edward Boehm at the 2013 Tucson Gem Show, GIA uncovers a rich vein of current information on supply and demand in the rare and high-end gem market.

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Insider View of the Colored Gem Market

It’s an emotional roller coaster following veteran gem dealer Evan Caplan in this exclusive GIA interview conducted at the 2013 Tucson Gem Show.

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2021 年纽约校区上课时间和时间表例外情况

以下为 GIA 根据规定节假日安排的课程表,部分上课日将延长至下午 4 点,以便学生假日休息。

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Dealing in Lapis Lazuli from Afghanistan

Mr. Naseri grew up in the lapis trade, working in his father’s business as a young boy. Born in Afghanistan, he rightfully claims a deep knowledge of this gem of his native land.

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Demantiod from the Green Dragon Mine

Mr. Reif came to the Tucson Gem Show to promote his mine’s product: demantoid garnet, “one of the rarest stones alive.”

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“平片到平片”参考书目

List of books pertaining to the Tablet to Tablet exhibit presented by theThe Richard T. Liddicoat Gemological Library and Information Center, November 2011-August 2012, GIA, Carlsbad, California

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Visions in Crystal(水晶幻想)

“Visions in Crystal(水晶幻想)”高逾 6 英尺(210 厘米),由 264 块水晶石英、黄水晶和烟水晶组成,每块水晶均切磨成不同的带棱角刻面。

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API 服务条款

若要访问并使用本 API,您必须通过完成 GIA 了解客户情况(KYC)的流程,并签署 GIA 客户协议成为 GIA 客户。

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装饰艺术的永恒魅力

咆哮的二十年代 — 这是一个仍然让我们着迷的时代。

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