The Ruby & Sapphire Buying Guide By Renee Newman.

Written by a gemologist and lecturer with broad experience who will teach you how to tell a ruby from a red glass and a good sapphire from a bad one. the first and only consumer book on the ruby and sapphire. Tells you how to spot value and avoid rip-offs. Many photos and step by step pointers on how to get the most for your money. Soft cover, 204 pages.