Newly updated and expanded, COLORED GEMSTONES gives you all the information you need to buy, collect, sell or simply enjoy sapphires, emeralds, rubies and other colored gemstones with confidence and knowledge.
With more varieties than ever before to choose from, including altogether new gems, revolutionary new cuts and new ways to buy gems such as Internet auctions and TV shopping there has never been a more exciting time to buy or collect colored gemstones. But there are also new high-tech treatments and sophisticated frauds to look out for....
Newly updated and expanded, COLORED GEMSTONES gives you all the information you need to buy, collect, sell or simply enjoy sapp...