A transparent supply chain and the education of artisanal miners were two of the many topics discussed at Tucson’s first Ethical Gem Fair.

Green nephrite deposits are found at many locations around the globe, with British Columbia, Siberia, and northwestern China as the leading producers.

Advanced analytic techniques are critical for separating Ethiopian feldspar from Oregonian and copper-bearing feldspar with undetermined color origin.

Chrysocolla-in-chalcedony, also known as gem silica or blue chalcedony in Taiwan, is the most valuable chalcedony variety on the Taiwanese market.

The Bangkok laboratory recently examined a pearl containing a laminated shell bead nucleus with mysterious properties.

In early February, despite the early phase of the COVID-19 outbreak, the Tucson shows were well attended and sales were brisk.

Picturesque beaches and lush green jungles are not the only attractions that make Bali the most popular tourist destination in Indonesia.

Mina Stones promotes Nigerian gems including rubellite and sapphire as well as reviving traditional skills and symbols in the creation of original jewelry.

This year at the AGTA show, the number of booths selling skillfully carved, fantasy cut, or expertly recut items was noticeably higher than in past years.

关于 Cullinan Diamond（库利南钻石）的加注文献清单

关于蓝锥矿的加注文献清单

GIA 毕业生打造纪念别针，以表彰正在抗击新冠病毒的医护人员。

在钻石贸易中，“光效应”一词广为使用，但实际观察钻石时，“光效应”到底指的是什么？

在钻石贸易中，“光效应”一词广为使用，但实际观察钻石时，“光效应”到底指的是什么？

Russell Shor（罗素·肖尔）对多年来他所报道的行业新闻中遇到的人、见到的宝石和听到的故事的思考。

了解莫桑比克红宝石的开采历史、特征和市场需求等信息。

不要单凭颜色来判断黄色宝石。从钻石、黄水晶再到柘榴石，很多宝石也呈现黄色色彩。

Color stability experiments show that the color of Queen conch shell and pearls may shift in hue and/or saturation under X-ray radiation or short-wave UV radiation.