Cobalt-Doped Glass-Filled Sapphires — An Update
The history of glass-infilling in blue sapphire, along with a description of the latest treatment generation developed in Chanthaburi, Thailand.
Articles
Guangzhou Jade Market Puzzle — A Chinese Jade Box
An investigation into nephrite and imitation nephrite pebbles purchased in Guangzhou, China's Hualin Street jade market.
Jade Buying Guide — Jade Auction Records
This article discusses the factors that influence quality and what to look for when buying both fei cui and nephrite. A list of jade auction records is also included.
Ruby, Sapphire & Spinel Auction Records — Under the Hammer
World auction records for ruby, sapphire and spinel.
In Search of the Lost Andesine Mines — Part 2 — Faith
The mining of natural red andesine in Tibet has been a subject of controversy. This article describes RWH's second visit to the Tibetan deposit.
Lao Sapphires — Laos – Land of a Million Elephants... & Sapphires
The history of the Lao sapphire mines at Ban Huay Xai is detailed, along with modern mining by Hong Kong based Sino Resources Mining Corp. Ltd. from 2006–2012.
In Search of the Lost Andesine Mines — Part 1 — Hunting Barack Osama in Tibet
The subject of andesine in Tibet has been one of controversy since 2008. This article examines the history of the issue, along with detailing an October 2010 visit to the Tibetan andesine deposit.
Black Prince's Ruby (Spinel) — Blood-Red Souvenir of Conquest
The history of the Black Prince's Ruby, one of the world's most famous precious stones.
History of Chanthaburi & Pailin — Moontown
The Thai city of Chanthaburi (จันทบุรี) may be small, but it has played an important role in both the history of Thailand and the gem trade. Taking its name from the Sanskrit word for moon ('chan'), this petite town is among the most charming in the Land of Smiles.
Emerald Buddha — Symbol of the Kingdom of Thailand
An exploration of the history and lore of the Emerald Buddha, a green statue that resides in Bangkok, Thailand’s Wat Phra Kaeo and watches over Thailand.