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 Tribal
Boulder Opal Necklace – Drilled Tribal
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Riverisles - Little round islands surrounded by winding blue‑green rivers, its tribal broad‑flash pattern flowing across the stone like a tiny glowing landscape.
This unique boulder opal tribal necklace features a natural double‑sided stone with blue‑green tones and a tribal broad flash.
Ethically sourced directly from a family‑run opal mining operation in South Australia, this piece carries both beauty and genuine provenance.
The stone has been polished to a smooth finish and fitted to a leather cord, creating an earthy, wearable style that suits everyday jewellery lovers and opal collectors alike.
Its freeform shape and natural brightness level of 3 give it a striking presence.
Whether worn as a statement piece or gifted to someone special, this one‑of‑a‑kind Australian opal necklace is ready for its new owner.
- Opal Type: Boulder Opal
- Style: Drilled, double‑sided necklace
- Colour: Blue, Green
- Pattern: Tribal Broad Flash
- Shape: Freeform
- Finish: Polished with natural imperfections
- Brightness: B3 (of 5)
- Dimensions: 30h × 18w × 3d mm
- Weight: 10g
- 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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Opal Brightness Guide
Judging brightness