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.

One blue blood’s beautiful bling could soon be yours.

A diamond necklace that has been worn at two British coronations, and is thought to have stones from the infamous necklace at the heart of a Marie-Antoinette scandal, is expected to fetch up to $2.8 million at auction.

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

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,

Rare antique diamond necklace expected to fetch more than £1m at auction - The 18th century diamond jewel of approximately 300 carats was worn to King George VI and Queen Elizabeth II’s coronations.

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.