These obvious arguments told against the Queen as well as against the Cardinal.
The Queen did not wear the jewels at the feast for which she had wanted them. Strange to say, she never wore them at all, to the surprise of the vendors and of the Cardinal. The necklace was, in fact, hastily cut to pieces with a blunt heavy knife, in Jeanne's house; her husband crossed to England, and sold many stones, and bartered more for all sorts of trinkets, to Grey, of New Bond Street, and Jeffreys, of Piccadilly. Villette had already been arrested with his pockets full of diamonds, but the luck of the House of Valois, and the astuteness of Jeanne, procured his release. So the diamonds were, in part, 'dumped down' in England; many were kept by the La Mottes; and Jeanne paid some pressing debts in diamonds.
The happy La Mottes, with six carriages, a stud of horses, silver plate of great value, and diamonds glittering on many portions of their raiment, now went off to astonish their old friends at Bar-sur-Aube. The inventories of their possessions read like pages out of The Arabian Nights. All went merrily, till at a great ecclesiastical feast, among her friends the aristocracy, on August 17, 1785, Jeanne learned that the Cardinal had been arrested at Versailles, in full pontificals, when about to celebrate the Mass. She rushed from table, fled to Versailles, and burned her papers. She would not fly to England; she hoped to brazen out the affair.
The arrest of the Cardinal was caused thus: On July 12, 1785, the jeweller, Böhmer, went to Versailles with a letter of thanks to the Queen, dictated by Rohan. The date for the payment of the first instalment had arrived, nothing had been paid, a reduction in price had been suggested and accepted. Böhmer gave the letter of thanks to the Queen, but the Controller-General entered, and Böhmer withdrew, without waiting for a reply. The Queen presently read the letter of thanks, could not understand it, and sent for the jeweller, who had gone home. Marie Antoinette thought he was probably mad, certainly a bore, and burned his note before the eyes of Madame Campan.
'Tell the man, when you next see him, that I do not want diamonds, and shall never buy any more.'
Fatal folly! Had the Queen insisted on seeing Böhmer, all would have been cleared up, and her innocence established. Böhmer's note spoke of the recent arrangements, of the jeweller's joy that the greatest of queens possesses the handsomest of necklaces—and Marie Antoinette asked no questions!
Jeanne now (August 3) did a great stroke. She told Bassenge that the Queen's guarantee to the Cardinal was a forgery. She calculated that the Cardinal, to escape the scandal, would shield her, would sacrifice himself and pay the 60,000l.
But the jewellers dared not carry the news to the Cardinal. They went to Madame Campan, who said that they had been gulled: the Queen had never received the jewels. Still, they did not tell the Cardinal. Jeanne now sent Villette out of the way, to Geneva, and on August 4 Bassenge asked the Cardinal whether he was sure that the man who was to carry the jewels to the Queen had been honest? A pleasant question! The Cardinal kept up his courage; all was well, he could not be mistaken. Jeanne, with cunning audacity, did not fly: she went to her splendid home at Bar-sur-Aube.
Villette was already out of reach; d'Oliva, with her latest lover, was packed off to Brussels; there was no proof against Jeanne; her own flight would have been proof. The Cardinal could not denounce her; he had insulted the Queen by supposing that she gave him a lonely midnight tryst, a matter of high treason; the Cardinal could not speak. He consulted Cagliostro. 'The guarantee is forged,' said the sage; 'the Queen could not sign "Marie Antoinette de France." Throw yourself at the King's feet, and confess all.' The wretched Rohan now compared the Queen's forged notes to him with authentic letters of hers in the possession of his family. The forgery was conspicuous, but he did not follow the advice of Cagliostro. On August 12, the Queen extracted the whole facts, as far as known to them, from the jewellers. On August 15, the day of the Assumption, when the Cardinal was to celebrate, the King asked him: 'My cousin, what is this tale of a diamond necklace bought by you in the name of the Queen?'
The unhappy man, unable to speak coherently, was allowed to write the story, in fifteen lines.