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 Doublet Earrings – Red & Blue Flash
Boulder Opal Doublet Earrings – Red & Blue Flash
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The Nebulight Ovals - A pair of boulder opal doublets that glow like tiny cosmic nebulae, their red‑and‑blue broad flash swirling across each oval face like star clouds drifting through deep space.
These oval boulder opal doublet earrings glow with a striking mix of red and blue broad flash, shifting beautifully as the light moves across their polished surface.
The red flash adds warmth and rarity, while the blue brings depth and contrast - a bold, eye‑catching combination.
Set in stamped 925 silver with a 18k gold‑plated finish, they have a refined, elegant look that elevates the opal’s natural fire.
With brightness 4, the colour play is vivid and lively, making these earrings perfect for anyone who loves opal with personality and presence.
Each pair is miner‑direct and completely unique.
- Opal Type: Boulder Opal
- Format: Doublet
- Colour: Red, Blue
- Pattern: Broad Flash
- Shape: Oval
- Finish: Polished
- Brightness: B4 (of 5)
- Jewellery Size: 5 × 4 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