Australian Solid Natural Polished Dark Opal.
Opal Type : Solid Australian Dark Opal
Carat Weight : 2.21 ct
Size : 6.26 mm x 13.39 mm approx
Thickness : 4.13 mm
Color : Green Orange Yellow Blue
Shape : Free Shape
Cut : Double Medium Dome Cabochon
Clarity : Opaque
Brightness B1 - B5 : B3.5
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.