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19.60 carat Lightning Ridge doublet free form - top grade with thick layer of crystal on top n1 black opal


Large doublet opal from the Lightning Ridge fields, thick layer of blue and green crystal on black opal


  • Mine - Lightning Ridge Doublet
  • Body Tone - N1 crystal top
  • Brightness - 4/5
  • Fire colour - Blue Green
  • Size - 20x19x6.5mm
  • Weight - 19.60 carat


Price is per stone


About Opals


Treatment: Doublet

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. 


19.60 carat Lightning Ridge doublet free form

SKU: Opl036
£485.00 Regular Price
£436.50Sale Price
Only 1 left in stock
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