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 – Deep Blue Oval, Silver
Boulder Opal Pendant – Deep Blue Oval, Silver
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Seatreasure - A boulder opal that looks like the deep blue sea hiding sunken treasures, its rich ocean‑blue pinfire shimmering like light filtering through water onto something precious below. The flashes move like tiny glints off lost relics, giving the whole piece that quiet, mysterious “found in the depths” energy.
This elegant Australian Boulder Opal pendant features a rich deep‑blue pinfire pattern, set in a polished 925 silver bezel.
With a brightness level of 4, this opal shows a lively shimmer across its surface -flashes of light that move beautifully as the pendant catches the sun.
Sourced directly from the miner and shaped into a classic oval, this piece blends modern simplicity with natural gemstone character.
A refined pendant for anyone who loves deep, ocean‑blue opal tones with a touch of sparkle.
- Opal Type: Natural Boulder Opal
- Format: Doublet
- Dimensions: 21 x 11 mm
- Colour Play: Deep blue with bright pinfire sparkle
- Pattern: Pinfire
- Brightness: B4 (of 5)
- Shape: Oval
- Finish: Polished
- Fitting: 925 Silver
- Style: Elegant, minimalist, timeless
- 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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Stories from the Studio
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Ethical Opal Sourcing
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Caring for Australian Opal
A simple guide -
Opal Brightness Guide
Judging brightness