Digital Devil #7. The believe-it-or-not story of Australia's Lenny Cram and his opal mine in a mason jar.

Installment #6 of my Digital Devil column, which discusses the introduction of HPHT diamonds into the market by Lazare Kaplan Inc. This one kicked up ...

Digital Devil #5, where I transition from hard-nosed gemological gumshoe to lamenting the lack of romance and appreciation of beauty in gemology.

Digital Devil #4. Genius is a funny thing. Those who possess it tell you it's just a matter of hard work, elbow grease, if you will. Those of us who l...

A critical examination of the methods used in gemological laboratories for the color grading of diamonds.

Digital Devil #3. This column is for both those who know about the web, as well as them that have yet to understand its power.

Digital Devil #2. It took me a while to realize that the editor wanted me to write about gems.

Links to websites related to gemology, gemstones, minerals and jewelry.

Digital Devil #1: The fights between gem dealers and gemologists are legendary, with each side looking down upon the other. It's truly dog against dog...

The Opticon treatment of fissure-filling treatment emeralds with Opticon became an issue of huge controversy in the late 1990's. This article takes a ...

The following interview with Richard W. Hughes appeared in Australian Jeweller, May 1998, p. 10.

Thanks to all those who have helped us over the years.

A curated list of the most important books on gems, gemology, jewelry, mineralogy and allied fields.

Bibliography of articles on gemology, ruby, sapphire, politics and other subjects written by Richard W. Hughes, E. Billie Hughes and/or Wimon Manorotk...

An exploration of Thailand's gem border towns with Myanmar (Burma), Mae Sot and Mae Sai.

A description of the fracture healing of Mong Hsu ruby, along with the problems this has created in the gem trade.

Full reviews of the 1997 gemological classic, Ruby & Sapphire, by Richard W. Hughes.

Quotes from some of the rave reviews of the 1997 gemological classic, Ruby & Sapphire, by Richard W. Hughes.

Emerald fissure filling with resins such as Opticon and oils such as cedarwood oil have generated tremendous controversy. What's all the fuss about?

An account of the authors' 1997 visit to Burma's jade mines.