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

Composed of approximately 300 carats of old mine-cut diamonds, the historic piece was once worn during royal coronations and ...

The 300-carat necklace thought to be at the center of the infamous 'Affair of the Diamond Necklace' that contributed to the ...

The necklace containing around 300 carats of diamonds was bought by an unidentified woman who put in her bid over the phone, ...

A rare square 37-carat emerald owned by the Aga Khan fetched nearly $9 million at auction in Geneva on Tuesday, making it the ...

Jordan Pettitt/PA Images via Getty An extremely rare diamond necklace with possible historical links to Marie Antoinette has been sold at auction for nearly $5 million. On Wednesday, Nov.

A remarkably rare 18th-century diamond necklace, possibly tied to a scandal that played a role in the doomed 18th century queen of France, Marie Antoinette's downfall, has sold for an impressive ...

The 300-carat necklace thought to be at the center of the infamous 'Affair of the Diamond Necklace' that contributed to the French Revolution sold at auction in Geneva An extremely rare diamond ...

Composed of approximately 300 carats of old mine-cut diamonds, the historic piece was once worn during royal coronations and is rumoured to hold ties to the scandal that tainted Marie Antoinette’s ...