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
Elegant Boulder Opal Ring - Blue & Green Rolling Flash
Elegant Boulder Opal Ring - Blue & Green Rolling Flash
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The Lightning Stone - Some opals glow. This one strikes. Bolts of vivid green electricity crackle across a clear blue sky - wild, electric, alive. A storm you can wear.
This elegant boulder opal ring features an 8 × 5 mm polished oval stone with vivid blue and green rolling flashes.
The opal is set in 925 silver with an 18k gold‑plated finish, giving the piece a refined, luxurious look.
With brightness 4, the colour play is lively and eye‑catching, shifting beautifully as the ring moves.
A miner‑direct doublet with a timeless silhouette - perfect for everyday elegance or special occasions.
- Opal Type: Boulder Opal
- Format: Doublet
- Colour: Green, Blue
- Pattern: Rolling Flash
- Shape: Oval
- Finish: Polished
- Brightness: B4 (of 5)
- Stone Dimensions: 8 × 5 mm
- Fitting: 925 Silver, 18k Gold Plated
- Source: Miner‑direct
- Origin: Boulder Opal Fields, Queensland, 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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Stories from the Studio
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Ethical Opal Sourcing
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Caring for Australian Opal
A simple guide -
Opal Brightness Guide
Judging brightness