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Solid Black Opal from Lightning Ridge
Opal Type : Solid Australian Black Opal
Carat Weight : 1.70 ct
Size : 7.70 mm x 10.00 mm approx
Thickness : 3.66 mm
Color : Blue with a touch of Green
Shape : Triangular
Cut : Medium High Dome Cabochon
Clarity : Translucent
Brightness B1 - B5 : B3.4
B1:Faint B2:Dull B3:Bright B4:Very Bright B5:Brilliant
Body Tone N1-N9 : N4 Black Opal
N1-N4:Black Opal N5-N6:Dark Opal N7-N9:Light Opal
Treatment : NONE
Origin : Lightning Ridge Opal Field, NSW Australia.