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 Stud Earrings - Blue, Red & Green Flash
Boulder Opal Doublet Stud Earrings - Blue, Red & Green Flash
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Nebulashift - A pair of opals that look like swirling nebula colours or vivid weather‑map currents, their blue‑red‑green‑orange flashes moving like tiny storms across the stone.
These oval boulder opal doublet stud earrings shimmer with a lively mix of blue, red, green, and orange broad flash that dances across their polished surface.
The colour play is bold and balanced - the red and orange tones adding warmth while the blue and green bring cool contrast.
Each stone is set in stamped 925 silver for a refined finish that complements the opal’s natural vibrancy.
With brightness 4, the flashes are strong and eye‑catching, making these earrings a perfect choice for anyone who loves opal’s fire and individuality.
Hand‑selected from miner‑direct stock, they’re lightweight, elegant, and completely unique - no two pairs ever alike.
- Opal Type: Boulder Opal
- Format: Doublet
- Colour: Blue, Red, Green, Orange
- Pattern: Broad Flash
- Shape: Oval
- Finish: Polished
- Brightness: B4 (of 5)
- Jewellery Size: 5 × 4 mm
- Fitting: Stamped 925 Silver
- 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