A diamond jewel owned and abandoned by Napoleon Bonaparte after the Battle of Waterloo will go up for auction for the first time.
The brooch, made of nearly 100 diamonds, was left behind after the emperor fled Waterloo's battlefield to return to Paris, and was given to the King of Prussia three days later as part of the trophies his armies took back.
It will now go under the hammer for the first time in Sotheby's The Royal and Noble Jewels Sale event on 12 November, with an estimated sale price of £112,674 - £187,790 (€129,215 - €215,359)
The circular diamond brooch consists of a large oval diamond at its centre, weighing 13.04 carats, surrounded by nearly one hundred mine-cut diamonds of varying shapes and sizes.
Created for Napoleon I in about 1810, the brooch was likely worn on special occasions and represents the end of his dream of maintaining and expanding his empire, while marking a historic power shift in Europe with the ascent of Prussia.
A hair ornament made with pearls, which belonged to the Cunegonde de Saxony, a cousin of Louis XVI, King of France, who was the husband of Marie Antoinette, will also go under the hammer.
Originally part of a tiara which was dismantled and remounted in about 1840, the natural pearl and diamond hair ornament and brooch are estimated to sell for between £320,815 and - £471,708.
A light pink diamond ring will also go up for sale for the first time.
Weighing just over thirteen carats, the ring is part of a collection of twenty jewels which belonged to one of the last Ottoman princesses, Neslishah Sultan.
The ring is estimated to sell for between £226,483 and £377,472.
Head of noble jewels Andres White Correal said: "It is a huge privilege to be able bring to auction such wondrous pieces of jewellery, boasting prestigious provenance, year after year in Geneva.
"Our Royal and Noble sale continues to be unparalleled in the auction world and continues to set the standard.
"The presentation, in the same sale, of items of jewellery previously owned by Emperor Napoleon I and Empress Catherine I via one of the greatest Ottoman princesses, to name only two stunning examples, demonstrates our ongoing quest to offer discerning collectors the absolute best."
Previous sales included an 18th-century diamond necklace, which was worn to the coronations of King George VI and Queen Elizabeth II by members of the Marquess of Anglesey's family,and which sold for more than £3 million last year.
Sotheby's The Royal and Noble Jewels Sale will take place on 12 November, with online bidding from 24 October.
