9.1cts - Tribal Queensland Boulder Opal from Yowah Rose Gold This stone displays hints of

This stone displays hints of blue and green colouration contrasting with dark ironstone in rare broad tribal patterns

Formation - Koroit nut

green and blue colouration in gorgeous pinfire/galaxy patterns

Featured stone is a freeform shaped

A 14k Gold large Queensland Boulder Opal doublet ring

9.1cts - Tribal Queensland Boulder Opal from Yowah Rose Gold This stone displays hints ofA beautiful Australian Boulder Opal from the Yowah nut formation. This stone displays green and blue colouration contrasting with dark earth tones in tribal patterns. Cut to a freeform shape with a quality finishing polish. Total weight 9. 1cts approx. Area of Mine Yowah, Outback Queensland, Australia Dimensions 19. 4mm x 10. 5mm x 4. 8mm approx. Formation Yowah nut Shape Freeform Colours blue, green