博茨瓦纳:选矿工作
在博茨瓦纳,约有近 3000 名工人从事出口钻石的切割和磨光工作 — 去年,该行业产生了近 8 亿美元收益,并可能在 2015 年突破 10 亿美元大关。 并非所有磨光业务都可以盈利,但不少是盈利的,其他的也取得了很大进步。

马达加斯加 Ilakaka(伊拉卡卡)和 Sakaraha(萨卡哈) 蓝宝石开采的情况更新

拍卖行:主要钻石和有色宝石的强大市场影响 (英语)
A report on how high-profile jewelry auctions have affected the gem and jewelry market.

博物馆展览将展出 Tony Duquette-Hutton Wilkinson(托尼·杜奎特 - 赫顿·威尔金森)珠宝


Enriching a Tradition
We’re placing a remarkable resource—almost 80 years—of groundbreaking gemological knowledge at your fingertips.


巴西珠宝产业的崛起

从安第斯山脉(Andes )到潘塔纳尔(Pantanál):寻找紫黄晶



Infrared Spectroscopic Study of Filled Moonstone
A study on how infrared spectroscopy provides conclusive evidence of impregnated moonstone.


Green Diamond, Treated with Radioactive Salt
The stone owes all of its green color to these shallow radiation stains.

Dumortierite-Quartz Rock Presented as Sapphire
The Gem Testing Laboratory of Jaipur, India, received for identification an opaque blue specimen, submitted as sapphire.
Musgravite from Myanmar
Two small, near-colorless stones reportedly from Myanmar were loaned to GIA for examination.

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