="Dossier"

您信任的报告，
现已完全数字化

GIA钻石鉴定精简版报告(GIA Diamond Dossier®)

了解更多
="March

海蓝宝石：来自令人生畏的悬崖边

三月生日石

了解更多
="Home

发现宝石和珠宝行业的工作机会

3月13日在贾维茨中心

了解更多
="WN22

缅甸红宝石、镀铜红长石和瓷处理绿松石的热处理

新《宝石与宝石学》杂志

阅读更多
推荐

研究与新闻

Examples include unheated brown specimens, heated rough material, and faceted stones.
Gem News International

Blue Zircon Reportedly from Malawi

A reported new source of blue zircon in Malawi yields rough material for beautiful finished stones in the gem trade.
Read More

知识交流网络研讨会
网络研讨会系列

GIA 知识交流

参加网络研讨会，共同探讨当今宝石学面临的各种最为紧迫的问题，包括宝石原产地、实验室制造宝石和实地宝石学的新发现。
了解更多

Small trigons and a rough surface texture seen on a chondrodite crystal.
Micro-World

Chondrodite in Red Spinel from Mogok, Myanmar

The Bangkok lab recently encountered a single round crystal of chondrodite in red spinel, a possible indicator of Burmese origin.
Read More

Diamond (left) and emerald (right) lenses.
Lab Notes

Two Antique Mughal Spectacles with Gemstone Lenses

Unique diamond and emerald-lensed spectacles from the Mughal Empire were tested in GIA’s New York laboratory.
Read More

“Healing Sisters” rings featuring amethyst and peridot.
Colored Stones Unearthed

Colored Stones from the Deep

The first installment of this column discusses the formation of colored stones from the crust-mantle transition and below.
Read More

A 2.42 ct green diamond treated by radioactive salts.
Micro-World

Radioactive Green Diamond

The Carlsbad lab recently encountered a 2.42 ct green diamond showing signs of radiation treatment by the use of radioactive salts.
Read More

学习与联络

了解如何购买

订婚戒指

开启职业生涯

宝石和珠宝行业

使用我们的实验室来

验证宝石

下载

《宝石与宝石学》(Gems & Gemology)
本月

推荐宝石

Featured Gem Peridot
橄榄石

产于熔岩、陨石和地幔深处，黄绿色橄榄石是最为珍贵的一种。
彩色钻石
彩色钻石

夺目的光彩， 迷人的颜色， 这些是地球上最珍贵的宝石。
钻石
钻石

钻石是自然界最珍贵和美丽的作品。
祖母绿略带蓝的绿色宝石
祖母绿

祖母绿是蓝绿色至绿色的绿柱石类别，这一矿物种别还包括海蓝宝石。
Featured Gem Citrine
黄水晶

黄水晶是透明、淡黄色到褐橙色的石英类别。
查阅宝石百科全书