Art Nouveau 14kt “Lightning Ridge” Black Opal & Enamel Ring 1980 and the tapered band measures

and the tapered band measures 1mm wide at the back

this stylish piece features three rows of a textured

The bulldog's face measures 1/2" tall and wide

but is adjustable

measures approximately 1" long and is 5/8" thick

Art Nouveau 14kt “Lightning Ridge” Black Opal & Enamel Ring 1980 and the tapered band measuresBlack opals are among the most rare and valuable of all natural opal varieties. This opals ring from the early 1900s has a 10+ct Black Opal with colors to match the finest to ever come out of Australia. Unlike their common opal counterparts, they have a dark canvas and radiate brilliant flashes of colors due to their subtle iron oxide and carbon properties. Although a portion of the world's opals are mined in Ethiopa, most originate in Australia