Gemology

Union Square & Co.

Gemstones of the World: Newly Revised Fifth Edition

Larousse

JOYAUX ET PIERRES PRECIEUSES                    

DK

Gemstones (DK Handbooks)                        

Abrams

The Smithsonian National Gem Collection Unearthed: Surprising Stories Behind the Jewels

TREDANIEL

Encyclopédie des cristaux                        

DK

Gem: The Definitive Visual Guide                

Barcharts, Inc

Gemstone & Crystal Properties                    

Gemology For Beginners : A Guide to Unveiling the Secrets of Gemstone (English Edition)

DK

Handbooks: Gemstones: The Clearest Recognition Guide Available

Independently published

Gemology Journey: Beginner's guide to Gemology