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11.90 carat Allens Rise semi black oval opal


Lovely oval cut with a medium dome. Allens Rise opal with a darkish base full of red, green, yellow pin fire colour.


Stunning large ring stone or pendant stone, comes alive in sunlight


  • Mine - Allens Rise, Coober Pedy Australia
  • Body Tone - N6
  • Brightness - 4/5
  • Fire colour - red green yellow
  • Size - 21x17x5.5mm
  • Weight - 11.90 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 dimentions 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. 


11.90 carat Allens Rise semi black oval opal OPL012

SKU: Opl012
£995.00 Regular Price
£895.50Sale Price
Only 1 left in stock
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