“现代宝石学之父”概览，GIA RICHARD T. LIDDICOAT (理查德·特·利德寇特)

他是宝石学家、教育家，并自称为梦想家。他建立了研究院的研究部门，并成立了世界知名的国际宝石学专题研讨会。

GIA 有色宝石服务全球总监为宝石材料和处理工艺的鉴定提升宝石学标杆。

This article provides identification criteria to distinguish between modern and fossil (mammoth) elephant ivory.

Vania Leles 于 2004 年在 GIA 伦敦获得了研究宝石学家文凭，很快，她将简历发给位于邦德大街的 Graff Diamonds，申请她梦想的工作。

This document provides the publication information for Gems & Gemology

This document provides the publication information for Gems & Gemology

This document provides the publication information for Gems & Gemology

This document provides the publication information for Gems & Gemology

This document provides the publication information for Gems & Gemology

This document provides the publication information for Gems & Gemology

This document provides the publication information for Gems & Gemology

This document provides the publication information for Gems & Gemology

GIA 第一位女性宝石学家及行业先锋。

GIA 第一位女性宝石学家及行业先锋。

For more than two decades, former plumber, welder and jewelry store-owner Dyber has been dazzling the world with his brilliant stone carvings ranging from sizes that fit in the palm of the hand to 12-lb quartz behemoths that can dominate a room.

A native of Kenya, Susie Kennedy teamed up with her husband in the 1990s to establish their place in the gem industry.

几千年来，红宝石和蓝宝石（通常为蓝色，有时也有各种其他颜色）一直都是最重要的有色宝石。这些刚玉族矿物包含各种颜色类别，历史上原产于东南亚和中亚地区，如今由于它们珍贵稀有、色彩瑰丽、坚硬耐磨，已经成为备受追捧的宝石。由于有向分布的矿物内含物，刚玉可以呈现出星光和猫睛光，在不同的光源下观察时，有时还会变色。