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 – Unusual Open‑Side Matrix Setting
Boulder Opal Pendant – Unusual Open‑Side Matrix Setting
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AiryMatrix - A delicate boulder opal with soft blue pinfire held in an open‑side silver frame, revealing natural matrix and giving the piece a light, airy sculptural feel.
This unusual boulder opal pendant features a polished freeform stone with soft blue pinfire and a unique open‑side matrix design.
The 25 × 9 mm opal is framed in 925 silver around most of its edges, while one side is intentionally left exposed and held with tiny silver clasps, revealing the natural matrix and giving the piece an airy, sculptural feel.
The stone hangs loosely from a pretty silver bail, allowing gentle movement. With brightness 1, it has a subtle, natural glow that suits its organic design.
A miner‑direct doublet perfect for lovers of unusual settings and raw opal character.
- Opal Type: Boulder Opal
- Format: Solid
- Colour: Blue
- Pattern: Pinfire
- Shape: Freeform
- Finish: Polished
- Brightness: B1 (of 5)
- Stone Dimensions: 25 × 9 mm
- Setting: 925 Silver with open‑side matrix reveal
- Design: Loose‑hanging stone, decorative bail
- 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