An Art Nouveau 18ct yellow gold and diamond brooch by Lucien Joseph Rene Janvier, the brooch with a bust of a lady inset with rose cut diamonds and emeralds. Lucien Joseph Rene Janvier (b. 1878) was a Belgian sculptor, jeweller, medallist and pupil of French master Faguieres and Mercie, he worked in Paris France. Wt 10 grams