Boulder opal and silver band ring
Opals, cant get enough of them. Really like this Opal such beautiful blues and a little green running through the stone. A D shaped Sterling silver band holds the ring in place.
Boulder opal is usually found in fractures and cracks and spaces in otherwise impermeable sandstone or ironstone. All the way from Queensland Australia but made by me in Kent UK.
Hallmarked by the London Assay office.