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.
From the gem trade to the world outside, Richard Hughes pokes his pointed pen into politically impolite places.
A curated list of the most important books on gems, gemology, jewelry, mineralogy and allied fields.