127.2cts - Huge Tribal Queensland Black Boulder Opal from Koroit Squared A great parcel for Opal

A great parcel for Opal cutters

Dimensions - 19mm x 12

This ring features a freeform shaped

Stones - Solid Queensland Boulder Opal

solid Dark Opal from Lightning Ridge

127.2cts - Huge Tribal Queensland Black Boulder Opal from Koroit Squared A great parcel for OpalA beautiful Queensland Boulder Opal from the Koroit Nut formation. This stone displays blue and green colouration in tribal patterns unique to the area on gorgeous dark ironstone. Cut to a freeform cabochon with a high quality finishing polish. Total weight 127. 2cts approx Area of Mine Koroit, Outback Queensland, Australia Dimensions 42. 1mm x 26. 2mm x 11. 7mm approx. Formation Koroit nut Shape freeform Colours blue, green Extras Free International