Mysterious diamond necklace — possibly linked to Marie Antoinette's demise — sells for $4.8 million
The necklace containing around 300 carats of diamonds was bought by an unidentified woman who put in her bid over the phone, ...
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The lab-grown diamond boom is over
The man-made diamond boom is over, and prices for ultra-trendy lab-grown diamonds are set to tumble this year, industry veterans say. Paul Zimnisky, a leading diamond analyst, foresees jewelers ...