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
Yowah Boulder Opal Pendant – Natural Teardrop with Circular Nut Pattern (Drilled)
Yowah Boulder Opal Pendant – Natural Teardrop with Circular Nut Pattern (Drilled)
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The Embercircle Stone - A warm Yowah opal with a striking orange centre ring, glowing like a tiny sun nestled in earthy ironstone.
This polished Yowah boulder opal pendant features a beautiful circular nut pattern on one side - a classic hallmark of Yowah opal fields.
The warm ironstone matrix forms natural rings and contours, giving the piece an earthy, organic look.
With brightness 1 and no strong colour play, this pendant leans into the raw, grounded beauty of boulder opal.
The smooth teardrop shape makes it comfortable to wear, and the drilled finish means you can add your own cord or chain to suit your style.
A simple, tactile, miner‑direct piece with a striking natural pattern.
- Opal Type: Boulder Opal (Yowah)
- Format: Solid
- Colour: Natural ironstone with minimal opal colour
- Pattern: Circular nut pattern
- Shape: Teardrop (freeform)
- Finish: Polished
- Brightness: B1 (of 5)
- Stone Dimensions: 30 × 24 × 3 mm
- Weight: 4 g
- Fitting: Drilled (add your own cord or chain)
- Source: Miner‑direct
- Origin: Yowah Fields Australia
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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