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 Pendant – Purple & Blue Full‑Face Flash (Silver Removable Bail)
Boulder Opal Pendant – Purple & Blue Full‑Face Flash (Silver Removable Bail)
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The Nightglow Pulse - A vivid boulder opal blazing with electric blue, green and purple against its dark base, its bright pinfire bursting like tiny stars igniting in the midnight sky.
This striking boulder opal pendant features a full‑face display of vivid purple, blue and green pinfire across its polished freeform surface.
With brightness 4, the colour play is bold and lively, shifting beautifully as the pendant moves.
The 13 × 13 × 3 mm boulder opal has a rounded freeform shape that feels modern and elegant, paired with a removable silver colour bail so you can easily change chains or cords.
A premium miner‑direct piece with rich, saturated colour - perfect for statement wear or gifting.
- Opal Type: Boulder Opal
- Format: Full-face Seam
- Colour: Purple, Blue, Green
- Pattern: Pinfire
- Shape: Freeform
- Finish: Polished
- Brightness: B4 (of 5)
- Stone Dimensions: 13 × 13 × 3 mm
- Fitting: Removable Silver Colour Bail
- Source: Miner‑direct
- Origin: Boulder Opal 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