By: Jeffery Bergman, SSEF SGC Aquamarine and emerald are both members of the beryl family, and while exceptionally large and clean aquamarine crystals are relatively

 Cultured pearls are harvested from wild and hatchery-reared mollusks of various Pinctada species in many parts of the world. Today, most of the oysters that

By: Jeffery Bergman, SSEF SGC Homo Sapiens are obsessed with origins. When we meet people for the first time, we want to know where they

By: Jeffery Bergman, SSEF SGC Legend has it that Ethiopia’s Queen Sheba adorned herself with precious opal when she visited King Solomon in Jerusalem. The

SSEF vindicates gemmologist Jeffery Bergman, SGC Bangkok, Thailand – September 17, 2023 – In a stunning 180-degree turnaround, SSEF, the Swiss Gemmological Institute, has acknowledged that

Pakistan’s Gems, Mines and Markets An Overview by Jeffery Bergman, SGC SSEF The magnificent ‘King of Kashmir’ aquamarine cluster in situ on meta-granite with quartz

Chromium Surface Diffusion Treated “Ruby” By: Jeffery Bergman – ASG SGC of EighthDimensionGems Photos by Ayub Muhammad of Pretty Little Gem July 20, 2023 –

Gemstone appraisal scam whistleblower facing criminal defamation charges in Thailand Bangkok, Thailand – May 28, 2023: Jeffery Bergman, an American gemstone dealer and gemologist based

Brazilian gemstone appraisal scammer fails to show up and testify in defamation trial in Thailand Bangkok, Thailand – August 23, 2023: A notorious appraisal scammer,