(Reuters) - A 9.54-carat rare blue diamond ring once belonging to the late Shirley Temple, one of Hollywood's most famous child actors, failed to sell at a New York auction on Tuesday, where it had ...
Some research is best done behind heavy, locked doors. When geologist Jeffrey Post recently embarked on an experiment involving the Hope Diamond, at 45.52 carats, the world’s largest deep-blue diamond ...
Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Blue Ghost's image of a "diamond ring" during a total solar ...
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