Australian Solid Natural Polished Opal.
Opal Type : Solid Australian Dark Opal
Carat Weight : 3.85 ct
Size : 8.95 mm x 16.36 mm approx
Thickness : 4.82 mm
Color : Green Blue
Shape : Free Shape
Cut : Double Medium Dome Cabochon
Clarity : Semi Opaque
Brightness B1 - B5 : B3.6
B1:Faint B2:Dull B3:Bright B4:Very Bright B5:Brilliant
Body Tone N1-N9 : N6 Dark Opal
N1-N4:Black Opal N5-N6:Dark Opal N7-N9:Light Opal
Treatment : NONE
Origin : Lightning Ridge Opal Field, NSW Australia.