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 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.

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.

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.