An 18ct Yellow Gold Boulder Opal Pendant. This interesting Boulder Opal has hues of green and reds, with blues thrown in to the mix as well. Set with spikes and swirls to give this pendant an unusual flare of design, it is sure to be admired by anyone looking at it. The Opal was mined in the central part of Queensland at a mine near Jundah. Can be worn on a medium to large style of chain as the bail is fairly roomy for a bigger chain. Enjoy.