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
Long Boulder Opal Dangle Earrings - Deep Blue & Green Rolling Flash
Long Boulder Opal Dangle Earrings - Deep Blue & Green Rolling Flash
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Seaflows - Long blue‑green opals that glow with rolling flashes, their subtle circular patterns catching the light like gentle currents turning beneath the surface.
These long boulder opal doublet earrings feature deep blue and green tones with a subtle circular pattern that catches the light beautifully.
The 18 × 5 mm freeform stones display rolling flashes of colour with brightness 4, giving them a lively, oceanic glow.
Set in polished 925 silver, the design creates graceful movement and a modern silhouette.
A miner‑direct pair that blends elegance and natural opal artistry - perfect for statement wear or gifting.
- Opal Type: Boulder Opal
- Format: Doublet
- Colour: Blue, Green
- Pattern: Rolling Flash with circular pattern
- Shape: Freeform
- Finish: Polished
- Brightness: B4 (of 5)
- Stone Dimensions: 18 × 5 mm
- Fitting: 925 Silver
- 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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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