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 Necklace – Drilled Blue, Green & Purple
Boulder Opal Necklace – Drilled Blue, Green & Purple
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Wavefang - A boulder opal with two wildly different personalities: one side a smooth blue opal wave curling like a tiny lagoon in motion, the other a fierce snarl of opal “teeth” where bright flashes open wide in jagged, dramatic shapes. It’s that perfect clash of calm water and wild energy, all held inside one vivid, miner‑cut stone.
This freeform boulder opal necklace bursts with vivid blue, green, and purple flashes across its polished surface, with visible seams of colour running through the back.
The stone’s natural character and miner‑direct origin make it a striking, one‑of‑a‑kind piece, finished with a simple leather cord for a relaxed, earthy style.
- Opal Type: Boulder Opal
- Colour: Blue, Green, Purple
- Pattern: Broad Flash
- Shape: Freeform
- Finish: Polished
- Brightness: B4 (of 5)
- Stone Dimensions: 30 × 18 × 4 mm
- Weight: 7 g
- Fitting: Adjustable leather cord
- 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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Ethical Opal Sourcing
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A simple guide -
Opal Brightness Guide
Judging brightness