• Blue black opal stone on a beige wood background
  • Blue stone on a textured beige surface
  • Blue opal gemstone on a beige surface
  • Blue gemstone on a beige wood background
  • Blue gemstone on a beige surface
  • Blue black opal stone on a beige wood background
  • Blue opal stone on a beige wood background
  • Blue opal stone on a beige background
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Georgie's Gem Studio

Black Boulder Opal – Blue & Green Flash, 5.1ct

Black Boulder Opal – Blue & Green Flash, 5.1ct

£289.00 GBP
£289.00 GBP
Sale Sold out
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The Nightcloud Ember - A dark, mysterious black boulder opal with rolling blue‑green space‑cloud flashes drifting across its surface, the electric fire glowing like cosmic light swirling through a deep midnight sky.

This striking black boulder opal shows intense blue and green broad flash across its polished freeform surface, glowing vividly against the natural dark host rock.

With brightness 5, the colour play is exceptionally strong - the kind of electric blue that lights up even in low light. The black base enhances the contrast, giving the flashes a deep, dramatic look that collectors love.

At 5.1ct, it’s a compact but powerful stone, perfect for a high‑impact ring, pendant, or a collector’s display. Still attached to its natural ironstone host, it carries the authentic character of Queensland’s black boulder opal fields.

  • Opal Type: Black Boulder Opal 
  • Format: Seam
  • Colour: Blue, Green 
  • Pattern: Broad Flash
  • Shape: Freeform 
  • Finish: Polished 
  • Brightness: B5 (of 5)
  • Stone Dimensions: 15 × 8 × 3 mm
  • Weight: 1.02 g (approx. 5.1 ct) 
  • Fitting: None (loose stone) 
  • Source: Miner‑direct
  • Origin: Lightning Ridge Opal Fields, New South Wales, 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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