Jewel-studded Faberge egg sells for record £22.9m at London auction  London Evening StandardRare Fabergé egg fetches record £22.9m at London auction  BBCFaberge egg, set with 4,500 diamonds, sells in London for world record £22.9m  Sky NewsFabergé egg made for mother of Russia’s last tsar sells for £23m  The GuardianFabergé egg made for Russian tsar sells for record £22.9 million  The Times