It is thought that some of the diamonds may have come from the necklace linked to a scandal that contributed Marie-Antoinette's death, Sotheby's said.

A mysterious 18th century necklace made from around 500 diamonds, some of which are believed to have been taken from a piece that contributed to Marie Antoinette's demise, will go on sale in November,

The 300-carat diamond necklace is rumored to have ties to the scandal of the "Affair of the Necklace" and advent of the French Revolution.

A rare diamond necklace with possible links to former French queen consort Marie Antoinette is to be auctioned in November with a price estimate of up to $2.8 million.

As they say, a piece of jewelry has the power to tell many stories. This particular diamond necklace, which is being sold by Sotheby's this fall for an estimated $2.8 million, tells royal-related ones both good and bad.

A rare antique diamond necklace worn at two British coronations is expected to sell for more than £1 million at auction. The 18th-century diamond piece of approximately 300 carats was worn at King George VI and Queen Elizabeth II’s coronations by members of the Marquess of Anglesey family,

The diamond necklace was worn at the coronation of two English monarchs and was created in the decade before the French revolution.