Victorian Diamond Opal Cocktail Ring in Sterling Silver Gold.  Opals were a popular gemstone in the Victorian era and the Victorians also loved the bypass ring style. Bypass rings are characterized by bands that overlap and part, rather than forming one simple, continuous line like most rings. The style became very popular in the Victorian era. This antique ring pairs two oval shaped opal cabochons with beautiful play of color. This lovely ring combines silver and yellow gold for a two toned look that will match any piece in your jewelry collection.