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10.65 carat Allens Rise oval cut semi black opal


Large low dome semi black opal from the Allens rise fields, body is full of red, green and yellow pin fire colour.  Really sparkles in sunlight.  More subdued in the shade.


  • Mine - Allens Rise
  • Body Tone - N5
  • Brightness - 4/5 (3/5 inside)
  • Fire colour - red green yellow
  • Size - 25x13.5x4.7mm
  • Weight - 10.65 carats


Price is for the stone pictured


About Opals


Treatment: Natural

Color: 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. 


10.65 carat Allens Rise oval cut semi black opal

SKU: Opl121
£1,950.00 Regular Price
£1,755.00Sale Price
Only 1 left in stock
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