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Diamond vs topaz HRD Antwerp
HRD Detects Topaz Imitating Diamonds
HRD Antwerp has identified two stones thatwere believed to be diamonds as topaz, reflecting a trend to fool rough diamondbuyers with the cheaper gemstone.The two large, near-colorless roughstones, weighing 50.08 carats and 38.18 carats, were...
Rough Markets Jul 16, 2017 Rapaport News
9,381-carat topaz
Record Flawless Blue Topaz to Go on Show
A 9,381-carat topaz will go on display at a London museumnext month.The world’s largest flawless blue topaz is scheduled toappear at the Natural History Museum’s minerals gallery from October 19.Measuring 15 centimeters long and 10.5 centimeters wide and...
Gemstones Sep 28, 2016 Rapaport News
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