Affair of the Diamond Necklace
On 21 January 1785, Jeanne told the Cardinal that Marie Antoinette wanted to buy the necklace; but, not wishing to purchase such an expensive item publicly during a time of need, the Queen wanted the Cardinal to act as a secret buyer. A little while later, Rohan negotiated the purchase of the necklace for 2,000,000 livres. Rohan took the necklace to Jeanne's house, where a man, whom Rohan believed to be a valet of the Queen, came to fetch it. The diamond necklace “was picked apart, and the gems sold on the black markets of Paris and London” by Madame de la Motte.