This pendant was one of a pair highlighting a magnificent bolder opal from Winton Australia. This half of the Opal Split features the concave half set in a caste 18K green gold Manta Ray body and hangs from a small kelp designed gold bale. This one of the pair originally completed set the opal on the ventral side of the ray, where the convex half of the split was set on the dorsal side of its ray setting.