A rare mineral is found in a rock crystal quartz host.

Blister pearls attached to shells are seen in both the Bangkok and New York laboratories.

A new source of sapphires is found in the Tigray region of Ethiopia.

Raman analysis identifies unusual inclusions in quartz.

A devitrified glass reminiscent of Victoria Stone is seen during the Tucson gem shows.

GIA 曼谷鉴定所为 41 颗柬埔寨-泰国红宝石出具的分析报告。

Analysis of a diamond graded Fancy blue revealed a CVD synthetic overgrowth on natural diamond.

Review of Ruby & Sapphire: A Gemologist’s Guide

春天 2017年拍卖季节看见两个重要的价格记录秋天和固体，如果不上涨，价格为顶部宝石一刀切。

The spring 2017 auction season saw two important price records fall and solid, if not rising, prices for top gems across the board.

设计师应对市场趋势，对钻石的需求超出预期。此外，节日期间的钻石营销宣传也对市场起到推波助澜的作用。

浮雕丰富的历史和知识将历史、神话及珠宝爱好者引入了迷人的收藏世界。

Buyers at the 2017 JCK Show will likely stick to their open-to-buy plans, but take few chances on new lines or extra stock. Plus: An overview of retail sales, auction headlines.

1867 年初，南非钻石的发现标志着钻石探索历史时期的开始。

世界各地都有琥珀的踪迹，但其历史上的主要产地则是波罗的海周边的那些土地。

在南非钻石矿场被发现的几年内，其出产的钻石比印度两千年来出产的还要多。