ARTICLES
Articles written by Jeffery Bergman for various magazines and websites

Pakistan’s Gems, Mines and Markets
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”
Chromium Surface Diffusion Treated “Ruby” By: Jeffery Bergman – ASG SGC of EighthDimensionGems Photos by Ayub Muhammad of Pretty Little Gem July 20, 2023 –

Crimson Prince Ruby from Namya
Crimson Prince Ruby from Namya Mogok, Myanmar is considered the source of the finest rubies on Earth. In 2000, an exciting new ruby discovery was

Emerald Enhancements A Consumer and Trade Guide
Emerald Enhancements: A Consumer and Trade Guide Regardless of origin, perhaps 99% of all cut emeralds are sold with some sort of enhancement for clarity. Since emeralds freshly

Trapiche: The Rising Star – by Jeffery Bergman
Trapiche: The Rising Star : by Jeffery Bergman Humans are fascinated with geometry and historically the hexagon is the most iconic of popular geometric shapes.

Ethiopian Opals: Facts, Fears and Fairytales
Ethiopian Opals: Facts, Fears and Fairytales Introduction Legend has it that Ethiopia’s Queen Sheba adorned herself with precious opal when she visited King Solomon in

Origin Opinions
Origin Opinions – When Gem Labs Agree To Disagree Homo Sapiens are obsessed with origins. When we meet people for the first time, we want
Gems & Gemology: 2016 Fall pg. 288-287 – Co-author:
Bead-cultured and non-bead cultured pearls from Lombok, Indonesia
IGR – Italian Gemological Review:
2019 #6 – Cover photo and article: Ethiopian emeralds, a stunning discovery
2019 #7 – Opali Etiopi. Fatti, favole e paure
2020 #10 – An overview of emerald enhancements
2021 #12 – The ultimate challenge. From an 11.22-carat with minor clarity enhancement, to an exceptional 10.17-carat oil/resin-free natural Shakiso, Ethiopian emerald
IGS – International Gem Society:
• Gem Origin Opinions: When Gem Labs Agree To Disagree
• Buyer Beware: Closer Examination of the Burj Alhamal Ruby Casts Doubt on its $120 Million Valuation
• Emerald Transformation: Cleaning and Recutting a Natural Emerald
• Emerald Enhancements: A Consumer and Trade Guide
• Is the 500-Pound Beleza Emerald Really Worth $280 million?
• 800 Years of Mogok: A Celebration in Tenuous Times
• Emerald Myth Busters: Identifying Colombian Stones
• The World’s Largest Cut Cats-eye Chrysoberyl
• The World’s Largest Emeralds
• Fake News in the Gem Trade: A Waterworn Emerald from Chivor?
• Ruby-Glass Composites vs Leaded Glass Clarity Enhancements