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11.70 carat lightning Ridge rough Opal - EO-247


This will cut such an interesting and unique stone.

Lighting ridge mine piece that will face with multiple fire bars. Cut one large stone across the fire lines to form strips or cut into multiple stones by following the fire bars.


  • Source - Lightning Ridge
  • Size - 23x16x7mm
  • Weight - 11.70 crts
  • Base Tone - N6
  • Fire Colour - Red Blue Green
  • Brightness - 4/5


Price is for the stone pictured


About Opals from around the world - 


Treatment: Natural

Colours Opal Can Be: Black, White, Blue, Green, Red, Yellow, Pink, Grey, Purple, Orange, Brown

Luster: Pearly, Vitreous, Opalescence

Birthstone zodiac sign: Libra

Associated month: October

Crystal system: Amorphous solid

Chemical formula: SiO₂·nH₂O

Hardness (Mohs hardness scale): 5.5 – 6.5

Country of origin: Australia, Ethiopia, Mexico and Cornwall amazingly 

Size variations: can vary 0.3mm each way on all dimensions given.




In mystical circles, opal is considered a stone representing hope, innocence and purity. It has strong connotations of happiness, faithfulness, loyalty and confidence.  Regarded as a powerful sea stone for safty on the water.


All orders are sent recorded delivery UK and International. 


11.70 carat lightning Ridge rough Opal - EO-247

SKU: EO-249
£685.00 Regular Price
£616.50Sale Price
Only 1 left in stock
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