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,

Some of the diamonds may have come from a necklace linked to a scandal that eventually led to Marie Antoinette's death, Sotheby's said.

Sotheby's plans to auction a rare 18th-century diamond necklace in Geneva on November 11. Comprising around 500 diamonds and potentially linked to Marie Antoinette, the piece is estimated to fetch between $1.

Sotheby's will auction an 18th-century necklace with 500 diamonds, potentially linked to Marie Antoinette, on November 11.

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. The 18th century jewel, weighing 300 carats,