In 1983, reporter John Stolssel of the TV show "20/20" embarassed the jewelry industry by taking a CZ Rostar Type Stone and a $50,000 diamond to New York's jeweler's row, where half of the jewelers he visited thought the CZ was a diamond.
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In 1983, reporter John Stolssel of the TV show "20/20" embarassed the jewelry industry by taking a CZ Rostar Type Stone and a $50,000 diamond to New York's jeweler's row, where half of the jewelers he visited thought the CZ was a diamond.
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