New Year, New Digital GIA Report

The start of 2023 marks a significant milestone in the digital transformation of the global diamond industry - the launch of the fully digital GIA Diamond Dossier, the most widely available diamond grading report in the world.

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GIA 团队与 Alan Revere(阿兰·里维尔)合作改进研究珠宝学家 (Graduate Jeweler) 课程

作为宝石学教育、研究以及以科学为基础的宝石鉴定与分级服务方面的领导者,GIA 与金匠大师兼备受赞誉的珠宝设计师 Alan Revere(阿兰·里维尔)开展合作,以期改进 GIA 的研究珠宝学家 (Graduate Jeweler) 课程。

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GIA 在蓝宝石中观察到异常的颜色变化

在对粉红色蓝宝石进行常规颜色稳定性测试时,GIA 专家发现,其橙色或黄色异常加深,变成了类似于帕帕拉夏宝石的颜色,或甚至变成了纯橙色。

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GIA 研究人员展示新发现

11 月 1 日至 3 日,美国宝石研究院在加州卡尔斯巴德的 GIA 全球总部召开第 16 届年度研究会,100 名 GIA 研究员、知名学者、独立行业专家以及 GIA 理事和高管通过现场和虚拟参会。

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GIA 理事会欢迎两位新任理事

Lisa Locklear(丽莎·洛克利尔)受任理事会主席;四位理事退休

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Cat’s-Eye Paraíba Tourmaline with Copper Inclusions

The Tokyo laboratory examines a Paraíba tourmaline with chatoyancy caused by copper inclusions.

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Fraudulently Inscribed Synthetic Moissanite

The Mumbai laboratory finds a fraudulent GIA inscription on synthetic moissanite.

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Pressed Amber Imitation for “Root Amber”

An examination of a beaded bracelet reveals calcite powder to enhance the imitation of natural root amber.

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Unusual Purple Fluid in Quartz

Numerous negative crystals in a pear-shaped quartz host brightly colored purple liquid.

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Update from Mozambique’s Ruby Mines

A field gemology team from GIA provides an update on the ruby mining operations around Montepuez.

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Synthetic Sapphire with Rose Channels

Rose channels and twinning planes are observed in light purplish blue synthetic corundum.

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Inaugural Turquoise United Conference

A report on the first-ever Turquoise United conference in Albuquerque, New Mexico.

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Gemological Characteristics of Low-Temperature “Gel-Filled” Turquoise

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Gems on Canvas: Pigments Historically Sourced from Gem Materials

Explores the use of gem materials as pigments in works of art, from the earliest cave paintings to the modern era.

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Hidden Gems at the San Diego Natural History Museum

Each level of the vertical Hidden Gems exhibit offers a different theme at the San Diego Natural History Museum.

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Sapphire Beneath the Rich Black Soil of Muling, Northeastern China

A comprehensive look at the gemological features and advanced analysis of blue and fancy-color sapphire from the agricultural area of Muling, China.

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The Liquids Lurking Inside Your Diamonds

Examines the variety of fluid inclusions contained within diamond, which reflect the natural processes that created and modified these gems deep within the earth’s mantle.

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Color Mechanism and Spectroscopic Thermal Variation of Pink Spinel Reportedly from Kuh-i-Lal, Tajikistan

A detailed spectroscopic investigation of the color of pink spinel reportedly from the Kuh-i-Lal deposit in the Pamir Mountains of Tajikistan.

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The Year of Mineralogy at the Perot Museum

The Perot Museum of Nature and Science promotes public interest in mineral studies with The Year of Mineralogy exhibit.

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Methods and Challenges of Establishing the Geographic Origin of Diamonds

Examines the current available means of determining the geographic origin of gem-quality diamond, which are based largely on trace element and isotopic characteristics. For now, no method exists for determining the provenance of a random individual diamond.

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