The 3rd edition of the most authoritative book on this subject is in the last stage of the updating process with important revisions. The 3rd edition has grown to a monster size book containing over 850+ juicy, full-color pages is named "ALCHEMY & SCIENCE IN HEAT TREATING RUBY-SAPPHIRE" and consists of two volumes.
Volume I. The topics in this volume are focused on the attributes of rubies & sapphires (color irregularities, lattice abnormalities, clarity, porosity, diaphaneity & other imperfections) and their effect in heating under different heating parameters and profiles. Heat treatment technology, practical applications and heating equipment are discussed in detail. This volume contains over 400 full color pages with over 1,100 illustrations, photos, and diagrams.
Volume II. The different types of the rubies & sapphires emanated from over 50 confirmed mining sites are discussed in detail and their corresponding heat treatment experiments are reported as performed by the author in his gem treatment laboratory in Bangkok. This volume contains over 250 full color pages; over 800 illustrations and photos. Numerous appendices with technical references and tables are provided. Contact us to reserve your copy.
I wish to thank all colleagues and clients who have been waiting patiently for the 3rd edition. Bear with me a little longer, you will not be disappointed! Due to high production costs only 500 copies will be printed for each volume. The books will be sold directly from my labin Bangkok. Amazon and other book dealers will not be involved. Remember, the first edition of The Heat Treatment of Ruby & Sapphire by Ted Themelis printed in 1992 was sold out in 1996. There are currently a few second hand copies selling on Amazon.com from US$343 to US$3,115...! Contact us to reserve your copy.