This document provides the publication information for Gems & Gemology

蓝宝石是三大彩色宝石之一（另外两种是红宝石和祖母绿）。这种经久耐用的宝石以其实用性和浪漫气息吸引着珠宝买家。点击此处，了解蓝宝石如此受欢迎的原因！

Honey yellow. Fiery orange. Cyclamen pink. Icy blue. In warm or cool tones, topaz is a lustrous and brilliant gem

从小对宝石和矿物的热爱造就了 GIA 图书馆的转型和持久的卓越声誉。

GIA 研究人员使用科学仪器帮助揭开宝石的神秘面纱。

如何申请 GIA 博士后研究员项目及相关信息。

此表格用于以零售商查询注册零售商地点

GIA 在每年的两次申请期间为其宝石学、珠宝和设计项目、课程和实习班提供奖学金。请在提供奖学金期间在此提交申请。

GIA 研究人员将分享他们最新的突破性发现。加入我们，共享科学盛宴。

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 has a long history of use as an adornment and possibly as a navigation tool.

Modern gemologists use the word “jade” as a generic term for both nephrite and jadeite. These minerals have been linked throughout history.

Learn about sunstone's durability and how to care for your sunstone jewelry.

Spinel is a good candidate for the title of “History’s Most Underappreciated Gem.” Some ancient mines that supplied gems for royal courts from Rome to China produced spinel, but it was usually confused with better-known stones like ruby and sapphire.

The Black Prince’s Ruby. The Timur Ruby. For centuries, spinel, the great imposter, masqueraded as ruby in Europe’s crown jewels

The spinel used in jewelry is a small part of a group of minerals that share the same crystal structure. Not all of them form transparent crystals suitable for jewelry use, however. Spinel offers a range of hues, from orange to intense “stoplight” red, vibrant pink, and all shades of purple, blue, and violet through bluish green.

了解粉晶的耐用性以及如何保养您的粉晶首饰。

Learn about the factors that make morganite so desirable.

Following the discovery of a new locality for rose beryl in Madagascar in 1910, George Kunz proposed the name morganite at a meeting of the New York Academy of Sciences on 5 December 1910 to honor his friend and customer J.P. Morgan.

Like many gems found in pegmatites, morganite can form large crystals.