9 of 9 people found the following review helpful
A Real Gem Dictionary,
This review is from: The Jeweler's Directory of Gemstones: A Complete Guide to Appraising and Using Precious Stones from Cut and Color to Shape and Settings (Hardcover)
Bought for a friend, she nearly didn't get it! Lovely clear photographs. Good descriptions and explanations about cut, clarity and colour of gems including natural green and yellow Diamonds and green Garnets. Groups that different gems belong to, hardness scale, where, and how, they are mined. Also how heat treatment is used to enhance colours. I can thoroughly recommend it.