4.15ct Round Lightning Ridge Black Opal
This 4.15 carat Lightning Ridge black opal which has base darkness of around N3. It shows off a beautiful gem green and blue flash pattern that displays well from all angles
It measures 12mm diameter with a 4mm dome with good cut and polish and is a lovely larger opal that would suit being made into a man's ring or large pendant.
It is photographed in a gold-colored gem holder to show how it will look once set.