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
Boulder Opal Ring - Rainbow Nebula Flash
Boulder Opal Ring - Rainbow Nebula Flash
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Auroraflow - A vivid opal set at a graceful angle, its rainbow flashes drifting like a flowing aurora across warm gold.
This unusual boulder opal doublet ring features a vivid oval opal set at an elegant angle, creating a flowing, nebula‑like look.
The 6 × 4 mm stone shows bright broad flashes of blue, red, green and yellow, blending into a rainbow effect that shifts beautifully with movement.
With brightness 5, the colour play is intense and eye‑catching.
The polished 925 silver setting, finished with 18k gold plating, adds warmth and sophistication while enhancing the opal’s cosmic glow.
A miner‑direct premium ring with a unique artistic design - perfect for statement wear or gifting.
Ring Size:
- UK: N
- US: 7
- EU: 54
- Asia: 14
Features:
- Opal Type: Boulder Opal
- Format: Doublet
- Colour: Blue, Red, Green, Yellow
- Pattern: Broad Flash
- Shape: Oval
- Finish: Polished
- Brightness: 5 (of 5)
- Stone Dimensions: 6 × 4 mm
- Fitting: 925 Silver, 18k Gold Plated
- Source: Miner‑direct
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About Our Opals
We only work with Australian opals, direct from #MinerToMaker.
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 small Australian miners and cutters.
Every opal comes from Queensland’s ethical, regulated opal fields.
All photos are taken with a macro lens, remember to check the opal dimensions before purchasing.
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More from the Studio
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Stories from the Studio
Read our latest posts -
Ethical Opal Sourcing
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Caring for Australian Opal
A simple guide -
Opal Brightness Guide
Judging brightness