4.4 carat Lightning Ridge black oval opal​​​​​​
 
Beautiful black opal from the Lightning Ridge miens, oval cut ready to set.  Low dome full of rich royal blue fire with hints of green.  Set as a ring or pendant this stone will shine which ever way.
 
Mine - Lightning Ridge - Australia
Body Tone - N3
Brightness - 4
Fire colour - Blue and green
Size - 14x11x4.3mm
Weight - 4.40
 
About Opals
 
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 dimension given
 
Properties:
 
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 safety on the water.
 
All orders are sent recorded delivery UK and International.