A freely moving diamond crystal completely enclosed in a diamond from Siberia gets its name from the famous Russian nesting dolls.

A delicate, ethereal necklace depicting a diamond butterfly caught in a gem-studded spider’s web won the third annual Gianmaria Buccellati Foundation student jewelry design contest.

Diamond inclusions are relatively common guests in diamond crystals.

Investigates the chemical, physical, and gemological properties of attractive rhodonite-rich rocks from this Swiss deposit.

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

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

Inclusions resembling snowflakes, and hues of many colors, are two characteristics seen in fine-quality jadeite specimens on offer at the Tucson gem show.

On February 5, 2020, Gems & Gemology launched a Facebook group dedicated to gemology and research published in the journal.

Untreated Russian emeralds, rarely seen in the market, demonstrate a range of color and degree of fineness.

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.

Orange crystal inclusion identified as the rare mineral triplite in a beryl from Pakistan.

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。