Prices for the rarest stones from Rio Tinto’s defunct Australian mine have long outperformed mainstream investments ...

Lab-grown diamonds are also being used for money laundering. Late last year, Indian and Hong Kong customs revealed a joint operation in which they discovered “cheap synthetic diamonds were being ...

De Beers will disclose the specific country of origin for diamonds over one carat, tracing them to Botswana, Namibia, South ...

Diamond prices declined in October but stabilized in the month’s second half. US buyers purchased for the holiday season ahead of India’s Diwali shutdown. However, manufacturers were under pressure to ...