Sterling silver, opal & druzy Mexican Cantera hotsell statement ring, double bezel opal and sterling size 6 ring

This is a unique vintage sterling silver hotsell opal & druzy statement ring. With a double bezel the
cabochons have a unique setting. The opal has some nice fire & I believe this is a Mexican
Cantera ring - it is marked FN? .925. This ring is a size 6.