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RAPAPORT… HRD Antwerp has identified two stones that
were believed to be diamonds as topaz, reflecting a trend to fool rough diamond
buyers with the cheaper gemstone.
The two large, near-colorless rough
stones, weighing 50.08 carats and 38.18 carats, were submitted recently to HRD’s
research department to determine their quality, the diamond laboratory said
last week. Investigation of the …

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