The sale, which started Friday, includes numerous antique brooches and diamond ... in Russian works for Christie’s. “She was buying something that reminded her of imperial Russia and I also ...

The Imperial ... The brooch sold for more than $1.65 million. A magnificent diamond necklace with a stunning bowknot clasp thought to be commissioned by Russian Empress Catherine the Great ...

More than 340 lots estimated to bring in more than $50 million will be offered by the auction house in Geneva, including a colored diamond ... items include a diamond flower brooch that is ...

For collectors of historic gems, a large oval sapphire and diamond brooch and matching earclips from the jewellery box of Grand Duchess Maria Pavlovna, the aunt of the last Russian Emperor ...