THE KING OF GEMS

British Crown Jewels is spinel. Synthetic ruby, made since the early 1900s, cannot be distinguished from real ruby with the naked eye. Much of the synthetic ruby manufactured, however, is used in watches and precision instruments, including lasers, rather than for jewelry.

Sites:

http://www.gemstone.org/ruby.html Lots of information on choosing a ruby, plus history and folklore
http://www.minerals.net/gemstone/gemston... General information, including details on "false" rubies
http://www.bsu.edu/teachers/academy/gems... The Rosser Reeves Star Ruby , 138.72 carats. (Smithsonian Collection)
http://www.bsu.edu/teachers/academy/gems... Uncut corundum (ruby) from Burma. (Smithsonian Collection)

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