A selection of the best of eclectic articles at Ruby-Sapphire.com.

Complete listing of articles in all subjects at Ruby-Sapphire.com.

Explore various topics relating to ruby and sapphire (corundum), from sources to treatments to identification.

Known as the "stone of heaven," jade is little known outside of China. Richard Hughes draws back the curtain on this beguiling gem.  

From Myanmar to Madagascar, Thailand to Tajikistan,  travel with Richard Hughes to the ends of the earth in search of precious stones.  

Ruby-Sapphire.com features dozens of articles on all aspects of gemology, from the laboratory to the field.  

Archive of Richard Hughes' notorious Digital Devil column.  

Tutorials on the use of gemological instruments.  

From the gem trade to the world outside, Richard Hughes pokes his pointed pen into politically impolite places.  

Articles on the history of precious stones.  

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

Image galleries from around the world.