Book Review: Cartier Royal High Jewelry and Precious Objects
Review of Cartier Royal High Jewelry and Precious Objects, by François Chaille.
Book Review: Collector’s Guide to the Amphibole Group
Review of Collector’s Guide to the Amphibole Group, by Robert J. Lauf.
GIA Gem & Jewelry Career Center Terms of Use
GIA Gem and Jewelry Career Center User Agreement and Disclaimer Notice
Book Review: Wartski: The First Hundred and Fifty Years
Review of Wartski: The First Hundred and Fifty Years, by Geoffrey Munn.
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Alexandrite Description
Alexandrite, with its chameleon-like qualities, is a rare variety of the mineral chrysoberyl. Its color can be a lovely green in daylight or fluorescent light, changing to brownish or purplish red in the incandescent light from a lamp or candle flame.
Alexandrite History and Lore
The gem was named after the young Alexander II, heir apparent to the throne. It caught the country’s attention because its red and green colors mirrored the Imperial Russian flag.
GIA 报告结果 API
GIA 报告结果 API 将多款应用程序与 GIA 数据库集成,用于验证分级信息,检索 PDF 版 GIA 报告、图像以及其他 GIA 报告相关资源。此服务适用于 GIA 报告核对中的所有报告。
Topaz Journey
Honey yellow. Fiery orange. Cyclamen pink. Icy blue. In warm or cool tones, topaz is a lustrous and brilliant gem

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