GENEVA—A diamond-studded necklace thought to be involved in a scandal that led to the eventual downfall of the last queen of France, Marie Antoinette, is being sold in Geneva next week.
The Georgian-era piece containing 300 carats of diamonds being sold by an Asian private collector in Geneva on Nov. 13 is valued at around 2 million Swiss francs ($2.29 million), Sotheby’s said, although it may fetch much more.