The Napoléon Diamond Necklace.
Original box of the Napoléon Diamond Necklace, made in Paris. 
Details of the Napoléon Diamond Necklace.
Disc-shaped tension halos, probably around sulfide crystals, as inclusions in one of the diamond.
Microscope coupled with an infrared spectrometer used to acquire infrared spectra of diamonds in the Napoleon Necklace.
The Napoléon Diamond Necklace under ultraviolet light. The diamonds are labeled as to their type. Most diamonds exhibit a blue fluorescence with various intensities; several diamonds have a pinkish orange luminescence; the rest are non fluorescent.
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