Morganite Care and Cleaning
Learn about morganite's durability and how to care for your morganite jewelry.


Book Review: Diamonds: An Early History of the King of Gems
A review of Diamonds: An Early History of the King of Gems by Jack Ogden.

Book Review: Figures & Faces: The Art of Jewelry
Review of Figures & Faces: The Art of Jewelry by Patrick Mauriès and Évelyne Possémé

Book Review: Geology: A Very Short Introduction
Review of Geology: A Very Short Introduction by Jan Zalasiewicz.

Book Review: Masterpieces in Miniature: Engraved Gems from Prehistory to the Present
Review of Masterpieces in Miniature: Engraved Gems from Prehistory to the Present by John Boardman and Claudia Wagner.

Book Review: Symphony of Jewels: Anna Hu Opus 2
Review of Symphony of Jewels: Anna Hu Opus 2 by Janet Zapata with Sarah Davis.


Rose Quartz History and Lore
Rose quartz jewelry was known to be crafted by the Assyrians around 800-600 BC. The Assyrians, along with the Romans, might have been the first to use this stone.

Rose Quartz Description
Rose quartz is one of the many quartz varieties used as a gem material. It gets its name from its delicate pink color, which ranges from very light (almost white) to medium-dark.


Sunstone History and Lore
In the early 1800s sunstone was a little-known, rare, and costly gemstone. It wasn’t until finds in Norway, Siberia, and other parts of the world that sunstone became somewhat more widely recognized, more available, and less expensive.
Sunstone Description
Not all feldspars that bear the name “sunstone” are from the same side of the feldspar family—both the orthoclase and the plagioclase species boast a sunstone feldspar variety. The name sunstone refers to the gem’s appearance rather than to its chemical makeup.

Iolite Description
This silicate of aluminum, iron, and magnesium has two distinctive features—a beautiful, violetish blue through slightly violetish blue hue derived from iron and a striking, eye-visible pleochroism.
Iolite History and Lore
Iolite has a long history of use as an adornment and possibly as a navigation tool.

Jade Description
Modern gemologists use the word “jade” as a generic term for both nephrite and jadeite. These minerals have been linked throughout history.
在消费者的新期望中拥抱可持续发展
莅临 JCK 拉斯维加斯珠宝展上 GIA 主办的午餐会,聆听就可持续发展主题的专家组讨论,宝石和珠宝行业的领导者将出席该活动。随着消费者预期不断提高,这一重要议题不容错过。
链接到 GIA
美国宝石研究院 (GIA) 提供领先的宝石和珠宝知识、标准、教育,尽可能地为公众提供教育服务是我们的使命之一。欢迎直接链接到我们的网站。我们提供若干个按钮,以供您直接链接到 GIA.edu 或 GIA Gem Encyclopedia(美国宝石研究院 (GIA) 宝石百科全书),同时也为您的网站添加了悦目的视觉元素。

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