• A polished natural stone cabochon with a marbled pattern of golden yellow, amber, and black, resting on a textured beige surface.
  • A polished teardrop-shaped stone with a mottled pattern of dark brown, golden yellow, and cream, resting on a textured light grey surface.
  • A polished brown and gold boulder stone with a central cream-coloured matrix, photographed on a textured beige surface.
  • A polished teardrop-shaped stone with a mottled pattern of dark brown, golden yellow, and cream, resting on a textured beige background.
  • A polished brown and gold boulder stone with a prominent cream-coloured central matrix, resting on a textured beige surface.
  • A polished teardrop-shaped cabochon with a marbled pattern of metallic gold, orange, black, and blue, resting on a textured beige background.
  • A polished teardrop-shaped gemstone with a marbled pattern of golden yellow, amber, and dark brown, resting on a sandy beige background.
  • A polished teardrop-shaped gemstone with a rich pattern of golden yellow, deep brown, and black matrix, photographed close-up against a textured beige background.
  • A polished teardrop-shaped stone with a marbled pattern of black, orange, brown, and cream, resting on a textured light grey surface.
  • A teardrop-shaped polished gemstone cabochon with a marbled pattern of dark brown, golden yellow, and cream, resting on a textured sandy surface.
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Georgie's Gem Studio

Large Boulder Opal Polished Stone - Double‑Sided Ironstone Matrix & Front‑Face Depth

Large Boulder Opal Polished Stone - Double‑Sided Ironstone Matrix & Front‑Face Depth

£69.00 GBP
£69.00 GBP
Sale Sold out
Taxes included. Shipping calculated at checkout.

OasisShell - A large boulder opal shaped like a natural cocoon, its earthy matrix opening into a clear central oasis of depth and hidden light.

This huge polished boulder opal features striking ironstone matrix patterns on both sides, giving it a natural, earthy look from every angle.

The front shows areas of transparency and depth through the polished surface, revealing the internal structure of the stone.

At 43 × 34 × 4 mm and 14 g, it’s a substantial collector’s piece with a smooth teardrop shape and gentle brightness 2. 

A miner‑direct solid opal ideal for display, wire‑wrapping, or keeping as a natural specimen. 

  • Opal Type: Boulder Opal 
  • Format: Solid 
  • Colour: Natural matrix tones with white and blue
  • Pattern: Ironstone matrix 
  • Shape: Teardrop 
  • Finish: Polished 
  • Brightness: B2 (of 5) 
  • Stone Dimensions: 43 × 34 × 4 mm 
  • Weight: 14 g 
  • Design: Double‑sided matrix 
  • Fitting: None (polished stone)
  • 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.

  • 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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