Opal Brightness Explained
Opal brightness is graded on the B1–B5 scale, where B1 is very dim and B5 is vivid and intense.
Georgie's Gem Studio
White Opal Nugget – Rolling Flash, Five Sides
White Opal Nugget – Rolling Flash, Five Sides
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The Prismtrail Nugget - A vivid white opal nugget with streaks of colour dancing across every side, its rolling flashes of blue, green, red, yellow and orange tracing bright pathways over a sculptural freeform shape like a tiny prism lit from within.
This large polished white opal nugget is full of life, showing rolling flashes of blue, green, red, and yellow across five different sides.
With brightness 5, the colour play is vivid and energetic, shifting dramatically as the stone moves. Its freeform shape and natural contours give it a sculptural, organic feel, while the polished finish enhances the opal’s clarity and fire.
This is a solid opal still in its natural nugget form - perfect for collectors, wire‑wrappers, or anyone who loves opal in its most expressive state.
Sourced directly from the miner, it’s a rare, high‑impact piece with a beautiful mix of warm and cool tones.
- Opal Type: White Opal
- Format: Solid Nugget
- Colour: White with blue, green, red, orange & yellow flash
- Pattern: Rolling Flash
- Shape: Freeform
- Finish: Polished
- Brightness: B5 (of 5)
- Stone Dimensions: 28 × 11 × 11 mm
- Weight: 4 g
- Fitting: None (loose stone)
- Source: Miner‑direct
- Origin: White Opal Fields Australia
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About Our Opals
Every stone is natural, untreated, and individually cut.
No two opals are ever the same - each piece is one‑of‑a‑kind. We source directly from a small Australian mining family, from ethical and regulated opal fields.All photos are taken with a macro lens, remember to check the opal dimensions before purchasing.
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Why Buy From Us
We only work with Australian opals. Every opal is sourced directly from a small‑scale Australian mining family who work with integrity, fairness, and respect for the land. Ethical sourcing and environmental responsibility matters to us.
We want you to be delighted with every purchase, so please read our policies or contact us if you want to find out more:
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Ethical Opal Sourcing
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Opal Brightness Guide
Judging brightness