Un eccezionale diamante rosa di 8,72 carati, appartenuto alla nipote di Napoleone, sarà battuto all'asta il 12 maggio a Ginevra dalla prestigiosa Sotheby's. Il suo valore è stimato tra i 14 e i 18 milioni di dollari (tra i 13 e i 15 milioni di franchi).
La preziosissima pietra, presentata in esclusiva venerdì all'agenzia AFP, avrebbe fatto parte della collezione della Principessa Matilde Bonaparte, a detta dell'Istituto americano di Gemmologia.
Fidanzata al cugino Luigi Napoleone Bonaparte (futuro Napoleone III), la donna sposò in seguito a Firenze il conte Anatolio Demidoff, nel 1840. In seguito scappò a Parigi per fuggire dal matrimonio infelice, portando con sé i preziosi gioielli.
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