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

Worn at Queen Elizabeth II’s coronation in 1953, the 300-carat diamond necklace sold Wednesday for more than twice its ...

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

Contestant Chock Chapple proposed with a stunning 4-carat ring during Wednesday night’s season finale of the ABC dating show.

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Bronwyn Newport was gifted a 170 carat, $4 million necklace during RHOSLC Season 5, Episode 9. Get all the details on the ...

Diamonds and other gemstones are weighed in metric carats: one carat is equal to 0.2 grams, about the same weight as a paperclip. (Don’t confuse carat with karat, as in “18K gold,” which refers to ...

A 300-carat rare 18th-century diamond necklace was auctioned for $4.81 million and 6.77 billion won in our money. Sotheby's, an auction house, said a rare necklace believed to have been linked to ...

Château de Breteuil/Wikipedia A reconstruction of the 2,800-carat jewel at the heart of the Affair of the Diamond Necklace. By 1784, a grifter named Jeanne de la Motte had entered the picture.