John Latendresse（约翰·拉藤德烈斯）被誉为美国养殖珍珠之父。 他还是一位伟大的天然珍珠收藏家，为其家族留下了可观的天然珍珠藏品。 Latendresse（拉藤德烈斯）家族在美国的珍珠行业备受推崇，长久以来，一直支持着 GIA 的珍珠研究。 请跟我们一起来重访这一家族和他们的珍珠藏品。

An experienced gem dealer gives an overview of sourcing gem-quality Afghan emeralds.

The recession of 2008 transforms a gem business into a vertically integrated operation.

A family sources, designs, and carves gems for extraordinary jewelry and pieces.

A look at top-quality gems and insight into a delegation’s visit to gem mines in Myanmar.

Paintings created from uncut gem fragments are seen at Tucson’s GJX show.

Plans to develop a collective in a remote Brazilian rutilated quartz mining community are unveiled.

Exceptional gems that are recirculated in the gem market make an impact at the Tucson shows.

A report from the second Jewelry Industry Summit, held in Tucson, Arizona on January 29–30, 2017.

A look at the 2016 sapphire production from Montana’s Rock Creek deposit.

Insight into amethyst mining activity in Morocco.

World-renowned jewelry artist Paula Crevoshay displays some of her newest pieces at the Tucson gem shows.

An overview of the Spring 2017 Gems & Gemology content.

An exclusive interview with Ian Harebottle, CEO of Gemfields.

A report from Tucson on the outlook of the pearl market.

GIA examines a multi-elemental diffused and melt-grown synthetic sapphire for the first time.

A sapphire with a color not commonly seen in the lab is found to have a glass filling.