The widower opened his eyes wide and remained gaping, not comprehending the merchant's meaning. Finally he stammered: "You say—are you sure?" The other replied dryly: "You can search elsewhere and see if anyone will offer you more. I consider it worth fifteen thousand at the most. Come back here if you cannot do better."

M. Lantin, beside himself with astonishment, took up the necklace and left the store. He wished time for reflection.

Once outside, he felt inclined to laugh, and said to himself: "The fool! Had I only taken him at his word! That jeweler cannot distinguish real diamonds from paste."

A few minutes after, he entered another store in the Rue de la Paix. As soon as the proprietor glanced at the necklace, he cried out:

"Ah, parbleu! I know it well; it was bought here."

M. Lantin was disturbed, and asked:

"How much is it worth?"

"Well, I sold it for twenty thousand francs. I am willing to take it back for eighteen thousand when you inform me, according to our legal formality, how it comes to be in your possession."

This time M. Lantin was dumfounded. He replied:

"But—but—examine it well. Until this moment I was under the impression that it was paste."