Natural 7.5 ct Lightning Ridge opal with vibrant green-blue play-of-colour sweeping across a clean N5 semi-crystal body.

The stone shows a lively broad-flash pattern that shifts from aqua to deep green under different lighting.

Some pale host and natural potch remain on the back edge, confirming its authenticity and offering scope for a final trim or polish if desired.

An attractive and sizable opal suitable for collectors, cutters, or jewellery makers seeking genuine Ridge material with colour throughout. Possibility to make 2 stones