René Boivin REF No. 1069 Oval ring in 18K yellow gold and wood set with diamonds, René Boivin circa 1970. 3,1 cm x 2,2 cm
René Boivin REF No. 2279 "Quatre Corps" ring in 18 k yellow gold set with multi colored sapphires, René Boivin circa 1980 French marks and Boivin maker's mark