13.1cts - Top Australian Boulder Seam Opal from Winton Opal Specimen Opal displays beautiful green and

Opal displays beautiful green and blue colouration

Cut to a freeform oval cabochon with a quality finishing polish

This stone displays predominantly electric green and blue colouration contrasting with earth tones in tribal patterns

Cut to an oval shape

Light Opal from Lightning Ridge

13.1cts - Top Australian Boulder Seam Opal from Winton Opal Specimen Opal displays beautiful green andA gorgeous Queensland Boulder Seam Opal from Winton, outback Queensland. This stone displays a face of deep oceanic blue colouration in beautiful transparent opal. Cut to a freeform shape with a high quality finishing polish. Total weight 13. 1cts approx. Area of Mine Winton, Outback Queensland, Australia Dimensions 24. 7mm x 13. 5mm x 4. 4mm approx. Formation Seam Opal Shape Freeform Colours blue