The Book of Ruby and Sapphire J.F. Halford-Watkins  |  2012 Prior to the 1930s, ruby and sapphire were mysteries, arcane gems oft-confused with spin...

Corundum Richard W. Hughes  |  1990 Rubies and sapphires are widely considered to be among the most sought after and precious of gems. Together they...

Since the late 1960's, East Africa has been home to some of planet earth's greatest gem discoveries. And yet, little has been written about certain of...

A brief history of the heat treatment of ruby & sapphire, from ancient times to the modern era.

Sample sidebar from Ruby & Sapphire (1997) by Richard W. Hughes

Ruby & Sapphire Richard W. Hughes  |  1992 Ruby & Sapphire explores the fascinating story of the corundum family of gems. This single volume...

Ruby & Sapphire Richard W. Hughes  |  1997 Ruby & Sapphire is widely acknowledged as one of the finest gemology books ever published. Not ju...

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

The chapter on ruby and sapphire from Burma (Myanmar) from Richard Hughes' 1997 book, Ruby & Sapphire.

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

Inclusions are among the most important features for identifying ruby and sapphire. This is the chapter on ruby and sapphire inclusions from Richard Hughes' 1997 book, Ruby & Sapphire.

This is the chapter on ruby and sapphire from India (including Kashmir sapphire) from Richard Hughes' 1997 book, Ruby & Sapphire.

Ruby & Sapphire  •  A Collector's Guide Richard W. Hughes  |  2014 Few gems capture the imagination like ruby and sapphire. This book removes th...

Part 1 of Chapter 10  from Richard Hughes' 1997 book, Ruby & Sapphire. It covers general principles of judging quality.

Part 2 of Chapter 10  from Richard Hughes' 1997 book, Ruby & Sapphire. It covers record-setting rubies, sapphires and spinels.

Appendix B from Richard Hughes' 1997 book, Ruby & Sapphire, consisting of prices.