Featured in this lot is this Art Nouveau fire opal, sapphire, ruby, and diamond, 18k yellow gold ring. The ring shows an Art Nouveau design to the ring frame with a total gold weight are 5.21GM. The center stone shows a rough cut fire opal gemstone with a 7.40 carat collective weight. The Art Nouveau ring setting is profusely decorated with 16 blue sapphires weighing 0.09 carats, 15 heat treated rubies weighing 0.05 carats, 14 turquoise or green sapphires weighing 0.07 carats, and 13 round brilliant cut diamonds weighing 0.07 carats. The ring shows the Crown Jewel Inc. hallmark with an 18k gold stamp on the inside of the ring band. The ring size is US 7.