Both versions (digital and printed) include a comprehensive look at the science of gemmology
THE ORIGINAL PROBLEM SOLVER FROM MAUN
6mm) for testing diamonds as small as 0
Grain (gr)
This set includes 10 chromed screwdrivers (Ref
Rare Gemstones: How to Identify, Evaluate and Care for Unusual Gems Flexshafts & Accessories Both versions (digital and printed)Provides concise, interesting and practical details on uncommon gems that are now being used by designers to create distinctive jewelry. Besides listing the identification properties of the gems, Rare Gemstones tells you where they're found, how they're used, why they're unique, how they're priced, and how to evaluate and care for them. Rare Gemstones includes information on their history, treatments, imitations, durability, uses, quality