Mother-and-son team Laurie and Geoffrey Watt (Mayer & Watt, Maysville, Kentucky) noted that while there were plenty of customers at the AGTA show this year, the formula for success was a wide selection of materials and competitive pricing.

Maine-based designer Derek Katzenbach discusses his education and inspiration.

Jeff Hapeman of Earth’s Treasury (Westtown, Pennsylvania) loves a gemstone with a good story.

Shahin Aboosalih of SR Trading shares his insights on the gem and jewelry industry.

Traveling gallery exhibits stunning mineral specimens during the Tucson gem shows.

Thoughts from a longtime Tucson exhibitor on responsible practices and the changing market trends.

Susi Smither discusses her sustainable, responsible, and ethically based business practices.

One of the most striking materials encountered in the Riverpark Inn (Pueblo) Gem Show was “rainbow lattice.”

The examination of a nearly complete trapiche emerald crystal–which are difficult to obtain–is consistent with the findings of previous studies.

An overview from the 2019 Tucson gem shows.

The World Jewellery Confederation (CIBJO) released the first edition of the Responsible Sourcing Book in January 2019.

A wholesaler supplying the bridal market with recycled gemstones and antique cuts shares his thoughts on the market and on responsible practices.

A composite of synthetically grown and natural diamond was recently identified by the Carlsbad laboratory.

关于产自哥伦比亚的祖母绿的加注文献清单

Researchers from GIA’s Bangkok laboratory seek to identify low-temperature heat treatment in basalt-related blue sapphires.

加利福尼亚州卡尔斯巴德 — 2019 年 4 月 29 日 – 为了遵守适用的法律、法规和最佳实践，GIA 正在改进其“了解客户”(KYC) 计划。

加州卡尔斯巴德 – 2019 年 4 月 25 日 – 为了更好地了解最古老的大陆是如何形成的，研究人员对地球形成过程中被困在钻石中的微小矿物残留物进行了检测。

矿物内含物揭示了大陆的构造，并帮助研究人员确定钻石的年龄。

戴比尔斯积极应对波动，FTC 发出有关实验室制造钻石的警告。另附：揭开 302.37 克拉 Graff Lesedi La Rona（我们的光）的神秘面纱。

看看这颗鲜艳的蓝色蓝宝石的开采和区别特征。