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 lack it simply stand in awe – viewing a rare jewel – the sheer majesty of it all. In my lifetime, the closest I've come to that stuff is a man named Gerry Rogers.

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 close look at it and asks if Opticon is actually that different from fillers like cedarwood oil.