Books

Gemstones: A Complete Color Reference for Precious and Semiprecious Stones of the World

Gemstones: Quality and Value

Gold, Platinum, Palladium, Silver & Other Jewelry Metals: How to Test, Select & Care for Them

Guide des Pierres Précieuses - Walter Schumann

Initiation a La Gemmologie

Introduction to Diamond Gemology by ALROSA

Jewellers' quick reference guide to working with gemstones

Jewelry Concepts and Technology

Jewelry Handbook: How to Select, Wear & Care for Jewelry

Diamonds (French Edition) – Illustrated Guide to Diamond Quality & Natural Color - Marijan Dundek

Hardness 10 – The Diamond Bible: Complete Guide to Diamonds, Cutting, and Production Areas

Optical Properties of Diamonds

Pearl Buying Guide

Photo Atlas of Inclusions in Gemstones

Rare Gemstones: How to Identify, Evaluate and Care for Unusual Gems

Rough Diamonds, a Practical Guide