Articles of Interest
Cornerstone Archive
About Surface Treated Color Diamonds - (Testing surface treated color diamonds - Carbide Scriber)
Laser Induced Breakdown Spectroscopy (LIBS) in Gemology
A Brief History of Heat: Heat Treatment of Ruby & Sapphire
Burma’s Jade Mines: An Annotated Occidental History
Burmese Jade: The Inscrutable Gem
Vampire Blues: Surface-diffusion treated sapphires
The Skin Game: Orange sapphires pouring out of Thai burners’ ovens
Seeing Red: A Connoisseur’s Guide to Ruby.
Passion Fruit A Lover’s Guide to Sapphire
Love and Hate: Max Green’s stolen millions and the Lao sapphire mines
There's a Rumble in the Jungle: The Sapphire Face-lift Face-off Saga
Catfights: Enhancement Codes & Trade Wars
Cloak and Dagger: The Politics of Opticon
The Crying Game: Diamond Color Grading
Foreign Affairs: Fracture Healing / Filling of Möng Hsu Ruby
From Russia with Jade: A journey to Russia’s jade mines
Heaven & Hell: The Quest for Jade in Upper Burma
The Name Game: Conventions for selecting the names of precious stones
Pigeon’s Blood: A Pilgrimage to Mogok – Valley of Rubies
Rubies and Spinels of Afghanistan: A Brief History
Spinel Compounds: Background & Historical Perspective
Thailand’s Jewelry Industry: A ‘Black Paper’ on the State of the Trade
Tracing the Green Line: A Journey to Burma’s Jade Mines
Uncle Ho’s Rubies: Vietnam’s Quy Chau Ruby Mines
Where the Twain Do Meet: Thailand’s Gem-Trading Border Towns
Archive (.pdf files - requires Adobe Reader)