Admire unbelievable treasuries of the unesco listed faberge halls in the hermitage state museum take a tour of the hermitage diamond room with a hermitage curator the diamond room houses the biggest collection of the russian emperors finest jewellery it showcases masterpieces of russian and european jewellery art from the romanov and private family collections as well as pieces of church art diplomatic gifts made by the most prominent jewellers of the time and works by faberg the romanov