Jewelry and stone-cutting art: traditions, innovations, problems: materials of the VII All-Russian research and practice conference (Yekaterinburg, October 19, 2016); Masters of jewelry Karl Faberge and Alexei Denisov-Uralsky: history, traditions, modernity: materials of the VIII All-Russian research and practice conference marking the 25th anniversary of the Museum of the History of Stone-Cutting and Jewelry Art (Yekaterinburg, June 07, 2017)