Readers will find fascinating details about the discovery, whereabouts, and value of famous opals, from such classic specimens as the Burning of Troy Opal to th

This book is the latest in the popular Fred Ward Gem Book Series. The full-color photographs give the buyer and enthusiast all the information needed to underst

New edition with added chapters and sections. Provides all the information necessary for complete analysis and evaluation of any opal from a true gem. Properly

Opals emit a rainbow of colors, which makes them perfect gems to place in stunning pieces of jewelry. How do opals go from raw stones to beautiful gems? Readers