Imperial Russian diamond and aquamarine tiara by Koch, circa 1910, belonging to the Imperial family.
18th century “Sévigné” shell brooch with emerald and diamonds on gold.
Historic oval cameo of Napoleon by Nicola Morelli (1771-1838), one of the most famous Roman gem engravers.
A gold cupid pendant from the Renaissance adorned with rubies, diamonds and emeralds.
A pink topaz and diamond tiara from a parure once owned by the German royal house of Württemberg